diff --git a/archive/0.12/whatsnew/index.html b/archive/0.12/whatsnew/index.html new file mode 100644 index 00000000..d679937a --- /dev/null +++ b/archive/0.12/whatsnew/index.html @@ -0,0 +1,776 @@ + + + + + + + + + What’s new in each version — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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What’s new in each version#

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v0.12#

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v0.11#

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v0.10#

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v0.9#

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v0.8#

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v0.7#

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v0.6#

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v0.5#

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v0.4#

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v0.3#

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v0.2#

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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.10.0.html b/archive/0.12/whatsnew/v0.10.0.html new file mode 100644 index 00000000..7a4fd6fb --- /dev/null +++ b/archive/0.12/whatsnew/v0.10.0.html @@ -0,0 +1,560 @@ + + + + + + + + + v0.10.0 (January 2020) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.10.0 (January 2020)#

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This is a major update that is being released simultaneously with version 0.9.1. It has all of the same features (and bugs!) as 0.9.1, but there are important changes to the dependencies.

+

Most notably, all support for Python 2 has now been dropped. Support for Python 3.5 has also been dropped. Seaborn is now strictly compatible with Python 3.6+.

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Minimally supported versions of the dependent PyData libraries have also been increased, in some cases substantially. While seaborn has tended to be very conservative about maintaining compatibility with older dependencies, this was causing increasing pain during development. At the same time, these libraries are now much easier to install. Going forward, seaborn will likely stay close to the Numpy community guidelines for version support.

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This release also removes a few previously-deprecated features:

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  • The tsplot function and seaborn.timeseries module have been removed. Recall that tsplot was replaced with lineplot().

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  • The seaborn.apionly entry-point has been removed.

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  • The seaborn.linearmodels module (previously renamed to seaborn.regression) has been removed.

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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.10.1.html b/archive/0.12/whatsnew/v0.10.1.html new file mode 100644 index 00000000..549ebd8a --- /dev/null +++ b/archive/0.12/whatsnew/v0.10.1.html @@ -0,0 +1,564 @@ + + + + + + + + + v0.10.1 (April 2020) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.10.1 (April 2020)#

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This is minor release with bug fixes for issues identified since 0.10.0.

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  • Fixed a bug that appeared within the bootstrapping algorithm on 32-bit systems.

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  • Fixed a bug where regplot() would crash on singleton inputs. Now a crash is avoided and regression estimation/plotting is skipped.

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  • Fixed a bug where heatmap() would ignore user-specified under/over/bad values when recentering a colormap.

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  • Fixed a bug where heatmap() would use values from masked cells when computing default colormap limits.

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  • Fixed a bug where despine() would cause an error when trying to trim spines on a matplotlib categorical axis.

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  • Adapted to a change in matplotlib that caused problems with single swarm plots.

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  • Added the showfliers parameter to boxenplot() to suppress plotting of outlier data points, matching the API of boxplot().

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  • Avoided seeing an error from statmodels when data with an IQR of 0 is passed to kdeplot().

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  • Added the legend.title_fontsize to the plotting_context() definition.

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  • Deprecated several utility functions that are no longer used internally (percentiles, sig_stars, pmf_hist, and sort_df).

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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.11.0.html b/archive/0.12/whatsnew/v0.11.0.html new file mode 100644 index 00000000..ada53127 --- /dev/null +++ b/archive/0.12/whatsnew/v0.11.0.html @@ -0,0 +1,818 @@ + + + + + + + + + v0.11.0 (September 2020) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.11.0 (September 2020)#

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This is a major release with several important new features, enhancements to existing functions, and changes to the library. Highlights include an overhaul and modernization of the distributions plotting functions, more flexible data specification, new colormaps, and better narrative documentation.

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For an overview of the new features and a guide to updating, see this Medium post.

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Required keyword arguments#

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API

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Most plotting functions now require all of their parameters to be specified using keyword arguments. To ease adaptation, code without keyword arguments will trigger a FutureWarning in v0.11. In a future release (v0.12 or v0.13, depending on release cadence), this will become an error. Once keyword arguments are fully enforced, the signature of the plotting functions will be reorganized to accept data as the first and only positional argument (#2052, #2081).

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Modernization of distribution functions#

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The distribution module has been completely overhauled, modernizing the API and introducing several new functions and features within existing functions. Some new features are explained here; the tutorial documentation has also been rewritten and serves as a good introduction to the functions.

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New plotting functions#

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Feature Enhancement

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First, three new functions, displot(), histplot() and ecdfplot() have been added (#2157, #2125, #2141).

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The figure-level displot() function is an interface to the various distribution plots (analogous to relplot() or catplot()). It can draw univariate or bivariate histograms, density curves, ECDFs, and rug plots on a FacetGrid.

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The axes-level histplot() function draws univariate or bivariate histograms with a number of features, including:

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  • mapping multiple distributions with a hue semantic

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  • normalization to show density, probability, or frequency statistics

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  • flexible parameterization of bin size, including proper bins for discrete variables

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  • adding a KDE fit to show a smoothed distribution over all bin statistics

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  • experimental support for histograms over categorical and datetime variables.

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The axes-level ecdfplot() function draws univariate empirical cumulative distribution functions, using a similar interface.

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Changes to existing functions#

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API Feature Enhancement Defaults

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Second, the existing functions kdeplot() and rugplot() have been completely overhauled (#2060, #2104).

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The overhauled functions now share a common API with the rest of seaborn, they can show conditional distributions by mapping a third variable with a hue semantic, and they have been improved in numerous other ways. The github pull request (#2104) has a longer explanation of the changes and the motivation behind them.

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This is a necessarily API-breaking change. The parameter names for the positional variables are now x and y, and the old names have been deprecated. Efforts were made to handle and warn when using the deprecated API, but it is strongly suggested to check your plots carefully.

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Additionally, the statsmodels-based computation of the KDE has been removed. Because there were some inconsistencies between the way different parameters (specifically, bw, clip, and cut) were implemented by each backend, this may cause plots to look different with non-default parameters. Support for using non-Gaussian kernels, which was available only in the statsmodels backend, has been removed.

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Other new features include:

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  • several options for representing multiple densities (using the multiple and common_norm parameters)

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  • weighted density estimation (using the new weights parameter)

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  • better control over the smoothing bandwidth (using the new bw_adjust parameter)

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  • more meaningful parameterization of the contours that represent a bivariate density (using the thresh and levels parameters)

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  • log-space density estimation (using the new log_scale parameter, or by scaling the data axis before plotting)

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  • “bivariate” rug plots with a single function call (by assigning both x and y)

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Deprecations#

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API

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Finally, the distplot() function is now formally deprecated. Its features have been subsumed by displot() and histplot(). Some effort was made to gradually transition distplot() by adding the features in displot() and handling backwards compatibility, but this proved to be too difficult. The similarity in the names will likely cause some confusion during the transition, which is regrettable.

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Standardization and enhancements of data ingest#

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Feature Enhancement Docs

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The code that processes input data has been refactored and enhanced. In v0.11, this new code takes effect for the relational and distribution modules; other modules will be refactored to use it in future releases (#2071).

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These changes should be transparent for most use-cases, although they allow a few new features:

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  • Named variables for long-form data can refer to the named index of a pandas.DataFrame or to levels in the case of a multi-index. Previously, it was necessary to call pandas.DataFrame.reset_index() before using index variables (e.g., after a groupby operation).

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  • relplot() now has the same flexibility as the axes-level functions to accept data in long- or wide-format and to accept data vectors (rather than named variables) in long-form mode.

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  • The data parameter can now be a Python dict or an object that implements that interface. This is a new feature for wide-form data. For long-form data, it was previously supported but not documented.

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  • A wide-form data object can have a mixture of types; the non-numeric types will be removed before plotting. Previously, this caused an error.

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  • There are better error messages for other instances of data mis-specification.

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See the new user guide chapter on data formats for more information about what is supported.

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Other changes#

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Documentation improvements#

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  • Docs Added two new chapters to the user guide, one giving an overview of the types of functions in seaborn, and one discussing the different data formats that seaborn understands.

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  • Docs Expanded the color palette tutorial to give more background on color theory and better motivate the use of color in statistical graphics.

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  • Docs Added more information to the installation guidelines and streamlined the introduction page.

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  • Docs Improved cross-linking within the seaborn docs and between the seaborn and matplotlib docs.

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Theming#

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  • API The set() function has been renamed to set_theme() for more clarity about what it does. For the foreseeable future, set() will remain as an alias, but it is recommended to update your code.

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Relational plots#

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  • Enhancement Defaults Reduced some of the surprising behavior of relational plot legends when using a numeric hue or size mapping (#2229):

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    • Added an “auto” mode (the new default) that chooses between “brief” and “full” legends based on the number of unique levels of each variable.

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    • Modified the ticking algorithm for a “brief” legend to show up to 6 values and not to show values outside the limits of the data.

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    • Changed the approach to the legend title: the normal matplotlib legend title is used when only one variable is assigned a semantic mapping, whereas the old approach of adding an invisible legend artist with a subtitle label is used only when multiple semantic variables are defined.

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    • Modified legend subtitles to be left-aligned and to be drawn in the default legend title font size.

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  • Enhancement Defaults Changed how functions that use different representations for numeric and categorical data handle vectors with an object data type. Previously, data was considered numeric if it could be coerced to a float representation without error. Now, object-typed vectors are considered numeric only when their contents are themselves numeric. As a consequence, numbers that are encoded as strings will now be treated as categorical data (#2084).

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  • Enhancement Defaults Plots with a style semantic can now generate an infinite number of unique dashes and/or markers by default. Previously, an error would be raised if the style variable had more levels than could be mapped using the default lists. The existing defaults were slightly modified as part of this change; if you need to exactly reproduce plots from earlier versions, refer to the old defaults (#2075).

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  • Defaults Changed how scatterplot() sets the default linewidth for the edges of the scatter points. New behavior is to scale with the point sizes themselves (on a plot-wise, not point-wise basis). This change also slightly reduces the default width when point sizes are not varied. Set linewidth=0.75 to reproduce the previous behavior. (#2708).

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  • Enhancement Improved support for datetime variables in scatterplot() and lineplot() (#2138).

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  • Fix Fixed a bug where lineplot() did not pass the linestyle parameter down to matplotlib (#2095).

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  • Fix Adapted to a change in matplotlib that prevented passing vectors of literal values to c and s in scatterplot() (#2079).

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Categorical plots#

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  • Enhancement Defaults Fix Fixed a few computational issues in boxenplot() and improved its visual appearance (#2086):

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    • Changed the default method for computing the number of boxes to``k_depth=”tukey”, as the previous default (``k_depth="proportion") is based on a heuristic that produces too many boxes for small datasets.

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    • Added the option to specify the specific number of boxes (e.g. k_depth=6) or to plot boxes that will cover most of the data points (k_depth="full").

      • +

    • Added a new parameter, trust_alpha, to control the number of boxes when k_depth="trustworthy".

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    • Changed the visual appearance of boxenplot() to more closely resemble boxplot(). Notably, thin boxes will remain visible when the edges are white.

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  • Enhancement Allowed catplot() to use different values on the categorical axis of each facet when axis sharing is turned off (e.g. by specifying sharex=False) (#2196).

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  • Enhancement Improved the error messages produced when categorical plots process the orientation parameter.

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  • Enhancement Added an explicit warning in swarmplot() when more than 5% of the points overlap in the “gutters” of the swarm (#2045).

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Multi-plot grids#

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  • Feature Enhancement Defaults A few small changes to make life easier when using PairGrid (#2234):

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    • Added public access to the legend object through the legend attribute (also affects FacetGrid).

      • +

    • The color and label parameters are no longer passed to the plotting functions when hue is not used.

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    • The data is no longer converted to a numpy object before plotting on the marginal axes.

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    • It is possible to specify only one of x_vars or y_vars, using all variables for the unspecified dimension.

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    • The layout_pad parameter is stored and used every time you call the PairGrid.tight_layout() method.

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  • Feature Added a tight_layout method to FacetGrid and PairGrid, which runs the matplotlib.pyplot.tight_layout() algorithm without interference from the external legend (#2073).

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  • Feature Added the axes_dict attribute to FacetGrid for named access to the component axes (#2046).

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  • Enhancement Made FacetGrid.set_axis_labels() clear labels from “interior” axes (#2046).

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  • Feature Added the marginal_ticks parameter to JointGrid which, if set to True, will show ticks on the count/density axis of the marginal plots (#2210).

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  • Enhancement Improved FacetGrid.set_titles() with margin_titles=True, such that texts representing the original row titles are removed before adding new ones (#2083).

    • +

  • Defaults Changed the default value for dropna to False in FacetGrid, PairGrid, JointGrid, and corresponding functions. As all or nearly all seaborn and matplotlib plotting functions handle missing data well, this option is no longer useful, but it causes problems in some edge cases. It may be deprecated in the future. (#2204).

    • +

  • Fix Fixed a bug in PairGrid that appeared when setting corner=True and despine=False (#2203).

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Color palettes#

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  • Docs Improved and modernized the color palettes chapter of the seaborn tutorial.

    • +

  • Feature Added two new perceptually-uniform colormaps: “flare” and “crest”. The new colormaps are similar to “rocket” and “mako”, but their luminance range is reduced. This makes them well suited to numeric mappings of line or scatter plots, which need contrast with the axes background at the extremes (#2237).

    • +

  • Enhancement Defaults Enhanced numeric colormap functionality in several ways (#2237):

    + +
    • +

  • Enhancement Added a rich HTML representation to the object returned by color_palette() (#2225).

    • +

  • Fix Fixed the "{palette}_d" logic to modify reversed colormaps and to use the correct direction of the luminance ramp in both cases.

    • +
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Deprecations and removals#

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    +

  • Enhancement Removed an optional (and undocumented) dependency on BeautifulSoup (#2190) in get_dataset_names().

    • +

  • API Deprecated the axlabel function; use ax.set(xlabel=, ylabel=) instead.

    • +

  • API Deprecated the iqr function; use scipy.stats.iqr() instead.

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  • API Final removal of the previously-deprecated annotate method on JointGrid, along with related parameters.

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  • API Final removal of the lvplot function (the previously-deprecated name for boxenplot()).

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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.11.1.html b/archive/0.12/whatsnew/v0.11.1.html new file mode 100644 index 00000000..5740f671 --- /dev/null +++ b/archive/0.12/whatsnew/v0.11.1.html @@ -0,0 +1,570 @@ + + + + + + + + + v0.11.1 (December 2020) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.11.1 (December 2020)#

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This a bug fix release and is a recommended upgrade for all users on v0.11.0.

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    +

  • Enhancement Reduced the use of matplotlib global state in the multi-grid classes (#2388).

    • +

  • Fix Restored support for using tuples or numeric keys to reference fields in a long-form data object (#2386).

    • +

  • Fix Fixed a bug in lineplot() where NAs were propagating into the confidence interval, sometimes erasing it from the plot (#2273).

    • +

  • Fix Fixed a bug in PairGrid/pairplot() where diagonal axes would be empty when the grid was not square and the diagonal axes did not contain the marginal plots (#2270).

    • +

  • Fix Fixed a bug in PairGrid/pairplot() where off-diagonal plots would not appear when column names in data had non-string type (#2368).

    • +

  • Fix Fixed a bug where categorical dtype information was ignored when data consisted of boolean or boolean-like values (#2379).

    • +

  • Fix Fixed a bug in FacetGrid where interior tick labels would be hidden when only the orthogonal axis was shared (#2347).

    • +

  • Fix Fixed a bug in FacetGrid that caused an error when legend_out=False was set (#2304).

    • +

  • Fix Fixed a bug in kdeplot() where common_norm=True was ignored if hue was not assigned (#2378).

    • +

  • Fix Fixed a bug in displot() where the row_order and col_order parameters were not used (#2262).

    • +

  • Fix Fixed a bug in PairGrid/pairplot() that caused an exception when using corner=True and diag_kind=None (#2382).

    • +

  • Fix Fixed a bug in clustermap() where annot=False was ignored (#2323).

    • +

  • Fix Fixed a bug in clustermap() where row/col color annotations could not have a categorical dtype (#2389).

    • +

  • Fix Fixed a bug in boxenplot() where the linewidth parameter was ignored (#2287).

    • +

  • Fix Raise a more informative error in PairGrid/pairplot() when no variables can be found to define the rows/columns of the grid (#2382).

    • +

  • Fix Raise a more informative error from clustermap() if row/col color objects have semantic index but data object does not (#2313).

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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.11.2.html b/archive/0.12/whatsnew/v0.11.2.html new file mode 100644 index 00000000..f3cbff18 --- /dev/null +++ b/archive/0.12/whatsnew/v0.11.2.html @@ -0,0 +1,583 @@ + + + + + + + + + v0.11.2 (August 2021) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.11.2 (August 2021)#

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This is a minor release that addresses issues in the v0.11 series and adds a small number of targeted enhancements. It is a recommended upgrade for all users.

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    +

  • API Enhancement In lmplot(), added a new facet_kws parameter and deprecated the sharex, sharey, and legend_out parameters from the function signature; pass them in a facet_kws dictionary instead (#2576).

    • +

  • Feature Added a move_legend() convenience function for repositioning the legend on an existing axes or figure, along with updating its properties. This function should be preferred over calling ax.legend with no legend data, which does not reliably work across seaborn plot types (#2643).

    • +

  • Feature In histplot(), added stat="percent" as an option for normalization such that bar heights sum to 100 and stat="proportion" as an alias for the existing stat="probability" (#2461, #2634).

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  • Feature Added FacetGrid.refline() and JointGrid.refline() methods for plotting horizontal and/or vertical reference lines on every subplot in one step (#2620).

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  • Feature In kdeplot(), added a warn_singular parameter to silence the warning about data with zero variance (#2566).

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  • Enhancement In histplot(), improved performance with large datasets and many groupings/facets (#2559, #2570).

    • +

  • Enhancement The FacetGrid, PairGrid, and JointGrid objects now reference the underlying matplotlib figure with a .figure attribute. The existing .fig attribute still exists but is discouraged and may eventually be deprecated. The effect is that you can now call obj.figure on the return value from any seaborn function to access the matplotlib object (#2639).

    • +

  • Enhancement In FacetGrid and functions that use it, visibility of the interior axis labels is now disabled, and exterior axis labels are no longer erased when adding additional layers. This produces the same results for plots made by seaborn functions, but it may produce different (better, in most cases) results for customized facet plots (#2583).

    • +

  • Enhancement In FacetGrid, PairGrid, and functions that use them, the matplotlib figure.autolayout parameter is disabled to avoid having the legend overlap the plot (#2571).

    • +

  • Enhancement The load_dataset() helper now produces a more informative error when fed a dataframe, easing a common beginner mistake (#2604).

    • +

  • Fix Enhancement Improved robustness to missing data, including some additional support for the pd.NA type (#2417, #2435).

    • +

  • Fix In ecdfplot() and rugplot(), fixed a bug where results were incorrect if the data axis had a log scale before plotting (#2504).

    • +

  • Fix In histplot(), fixed a bug where using shrink with non-discrete bins shifted bar positions inaccurately (#2477).

    • +

  • Fix In displot(), fixed a bug where common_norm=False was ignored when faceting was used without assigning hue (#2468).

    • +

  • Fix In histplot(), fixed two bugs where automatically computed edge widths were too thick for log-scaled histograms and for categorical histograms on the y axis (#2522).

    • +

  • Fix In histplot() and kdeplot(), fixed a bug where the alpha parameter was ignored when fill=False (#2460).

    • +

  • Fix In histplot() and kdeplot(), fixed a bug where the multiple parameter was ignored when hue was provided as a vector without a name (#2462).

    • +

  • Fix In displot(), the default alpha value now adjusts to a provided multiple parameter even when hue is not assigned (#2462).

    • +

  • Fix In displot(), fixed a bug that caused faceted 2D histograms to error out with common_bins=False (#2640).

    • +

  • Fix In rugplot(), fixed a bug that prevented the use of datetime data (#2458).

    • +

  • Fix In relplot() and displot(), fixed a bug where the dataframe attached to the returned FacetGrid object dropped columns that were not used in the plot (#2623).

    • +

  • Fix In relplot(), fixed an error that would be raised when one of the column names in the dataframe shared a name with one of the plot variables (#2581).

    • +

  • Fix In the relational plots, fixed a bug where legend entries for the size semantic were incorrect when size_norm extrapolated beyond the range of the data (#2580).

    • +

  • Fix In lmplot() and regplot(), fixed a bug where the x axis was clamped to the data limits with truncate=True (#2576).

    • +

  • Fix In lmplot(), fixed a bug where sharey=False did not always work as expected (#2576).

    • +

  • Fix In heatmap(), fixed a bug where vertically-rotated y-axis tick labels would be misaligned with their rows (#2574).

    • +

  • Fix Fixed an issue that prevented Python from running in -OO mode while using seaborn (#2473).

    • +

  • Docs Improved the API documentation for theme-related functions (#2573).

    • +

  • Docs Added docstring pages for all methods on documented classes (#2644).

    • +
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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.12.0.html b/archive/0.12/whatsnew/v0.12.0.html new file mode 100644 index 00000000..c1436b9a --- /dev/null +++ b/archive/0.12/whatsnew/v0.12.0.html @@ -0,0 +1,666 @@ + + + + + + + + + v0.12.0 (September 2022) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.12.0 (September 2022)#

+
+

Introduction of the objects interface#

+

This release debuts the seaborn.objects interface, an entirely new approach to making plots with seaborn. It is the product of several years of design and 16 months of implementation work. The interface aims to provide a more declarative, composable, and extensible API for making statistical graphics. It is inspired by Wilkinson’s grammar of graphics, offering a Pythonic API that is informed by the design of libraries such as ggplot2 and vega-lite along with lessons from the past 10 years of seaborn’s development.

+

For more information and numerous examples, see the tutorial chapter and API reference

+

This initial release should be considered “experimental”. While it is stable enough for serious use, there are definitely some rough edges, and some key features remain to be implemented. It is possible that breaking changes may occur over the next few minor releases. Please be patient with any limitations that you encounter and help the development by reporting issues when you find behavior surprising.

+
+
+

Keyword-only arguments#

+

API

+

Seaborn’s plotting functions now require explicit keywords for most arguments, following the deprecation of positional arguments in v0.11.0. With this enforcement, most functions have also had their parameter lists rearranged so that data is the first and only positional argument. This adds consistency across the various functions in the library. It also means that calling func(data) will do something for nearly all functions (those that support wide-form data) and that pandas.DataFrame can be piped directly into a plot. It is possible that the signatures will be loosened a bit in future releases so that x and y can be positional, but minimal support for positional arguments after this change will reduce the chance of inadvertent mis-specification (#2804).

+
+
+

Modernization of categorical scatterplots#

+

This release begins the process of modernizing the categorical plots, beginning with stripplot() and swarmplot(). These functions are sporting some enhancements that alleviate a few long-running frustrations (#2413, #2447):

+
    +

  • Feature The new native_scale parameter allows numeric or datetime categories to be plotted with their original scale rather than converted to strings and plotted at fixed intervals.

    • +

  • Feature The new formatter parameter allows more control over the string representation of values on the categorical axis. There should also be improved defaults for some types, such as dates.

    • +

  • Enhancement It is now possible to assign hue when using only one coordinate variable (i.e. only x or y).

    • +

  • Enhancement It is now possible to disable the legend.

    • +
+

The updates also harmonize behavior with functions that have been more recently introduced. This should be relatively non-disruptive, although a few defaults will change:

+
    +

  • Defaults The functions now hook into matplotlib’s unit system for plotting categorical data. (Seaborn’s categorical functions actually predate support for categorical data in matplotlib.) This should mostly be transparent to the user, but it may resolve a few edge cases. For example, matplotlib interactivity should work better (e.g., for showing the data value under the cursor).

    • +

  • Defaults A color palette is no longer applied to levels of the categorical variable by default. It is now necessary to explicitly assign hue to see multiple colors (i.e., assign the same variable to x/y and hue). Passing palette without hue will continue to be honored for one release cycle.

    • +

  • Defaults Numeric hue variables now receive a continuous mapping by default, using the same rules as scatterplot(). Pass palette="deep" to reproduce previous defaults.

    • +

  • Defaults The plots now follow the default property cycle; i.e. calling an axes-level function multiple times with the same active axes will produce different-colored artists.

    • +

  • API Currently, assigning hue and then passing a color will produce a gradient palette. This is now deprecated, as it is easy to request a gradient with, e.g. palette="light:blue".

    • +
+

Similar enhancements / updates should be expected to roll out to other categorical plotting functions in future releases. There are also several function-specific enhancements:

+
    +

  • Enhancement In stripplot(), a “strip” with a single observation will be plotted without jitter (#2413)

    • +

  • Enhancement In swarmplot(), the points are now swarmed at draw time, meaning that the plot will adapt to further changes in axis scaling or tweaks to the plot layout (#2443).

    • +

  • Feature In swarmplot(), the proportion of points that must overlap before issuing a warning can now be controlled with the warn_thresh parameter (#2447).

    • +

  • Fix In swarmplot(), the order of the points in each swarm now matches the order in the original dataset; previously they were sorted. This affects only the underlying data stored in the matplotlib artist, not the visual representation (#2443).

    • +
+
+
+

More flexible errorbars#

+

API Feature

+

Increased the flexibility of what can be shown by the internally-calculated errorbars for lineplot(), barplot(), and pointplot().

+

With the new errorbar parameter, it is now possible to select bootstrap confidence intervals, percentile / predictive intervals, or intervals formed by scaled standard deviations or standard errors. The parameter also accepts an arbitrary function that maps from a vector to an interval. There is a new user guide chapter demonstrating these options and explaining when you might want to use each one.

+

As a consequence of this change, the ci parameter has been deprecated. Note that regplot() retains the previous API, but it will likely be updated in a future release (#2407, #2866).

+
+
+

Other updates#

+
    +

  • Feature It is now possible to aggregate / sort a lineplot() along the y axis using orient="y" (#2854).

    • +

  • Feature Made it easier to customize FacetGrid / PairGrid / JointGrid with a fluent (method-chained) style by adding apply/ pipe methods. Additionally, fixed the tight_layout and refline methods so that they return self (#2926).

    • +

  • Feature Added FacetGrid.tick_params() and PairGrid.tick_params() to customize the appearance of the ticks, tick labels, and gridlines of all subplots at once (#2944).

    • +

  • Enhancement Added a width parameter to barplot() (#2860).

    • +

  • Enhancement It is now possible to specify estimator as a string in barplot() and pointplot(), in addition to a callable (#2866).

    • +

  • Enhancement Error bars in regplot() now inherit the alpha value of the points they correspond to (#2540).

    • +

  • Enhancement When using pairplot() with corner=True and diag_kind=None, the top left y axis label is no longer hidden (#2850).

    • +

  • Enhancement It is now possible to plot a discrete histplot() as a step function or polygon (#2859).

    • +

  • Enhancement It is now possible to customize the appearance of elements in a boxenplot() with box_kws/line_kws/flier_kws (#2909).

    • +

  • Fix Improved integration with the matplotlib color cycle in most axes-level functions (#2449).

    • +

  • Fix Fixed a regression in 0.11.2 that caused some functions to stall indefinitely or raise when the input data had a duplicate index (#2776).

    • +

  • Fix Fixed a bug in histplot() and kdeplot() where weights were not factored into the normalization (#2812).

    • +

  • Fix Fixed two edgecases in histplot() when only binwidth was provided (#2813).

    • +

  • Fix Fixed a bug in violinplot() where inner boxes/points could be missing with unpaired split violins (#2814).

    • +

  • Fix Fixed a bug in PairGrid where an error would be raised when defining hue only in the mapping methods (#2847).

    • +

  • Fix Fixed a bug in scatterplot() where an error would be raised when hue_order was a subset of the hue levels (#2848).

    • +

  • Fix Fixed a bug in histplot() where dodged bars would have different widths on a log scale (#2849).

    • +

  • Fix In lineplot(), allowed the dashes keyword to set the style of a line without mapping a style variable (#2449).

    • +

  • Fix Improved support in relplot() for “wide” data and for faceting variables passed as non-pandas objects (#2846).

    • +

  • Fix Subplot titles will no longer be reset when calling FacetGrid.map() or FacetGrid.map_dataframe() (#2705).

    • +

  • Fix Added a workaround for a matplotlib issue that caused figure-level functions to freeze when plt.show was called (#2925).

    • +

  • Fix Improved robustness to numerical errors in kdeplot() (#2862).

    • +

  • Fix Fixed a bug where rugplot() was ignoring expand_margins=False (#2953).

    • +

  • Defaults The patch.facecolor rc param is no longer set by set_palette() (or set_theme()). This should have no general effect, because the matplotlib default is now "C0" (#2906).

    • +

  • Build Made scipy an optional dependency and added pip install seaborn[stats] as a method for ensuring the availability of compatible scipy and statsmodels libraries at install time. This has a few minor implications for existing code, which are explained in the Github pull request (#2398).

    • +

  • Build Example datasets are now stored in an OS-specific cache location (as determined by appdirs) rather than in the user’s home directory. Users should feel free to remove ~/seaborn-data if desired (#2773).

    • +

  • Build The unit test suite is no longer part of the source or wheel distribution. Seaborn has never had a runtime API for exercising the tests, so this should not have workflow implications (#2833).

    • +

  • Build Following NEP29, dropped support for Python 3.6 and bumped the minimally-supported versions of the library dependencies.

    • +

  • API Removed the previously-deprecated factorplot along with several previously-deprecated utility functions (iqr, percentiles, pmf_hist, and sort_df).

    • +

  • API Removed the (previously-unused) option to pass additional keyword arguments to pointplot().

    • +
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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.12.1.html b/archive/0.12/whatsnew/v0.12.1.html new file mode 100644 index 00000000..5b4ef196 --- /dev/null +++ b/archive/0.12/whatsnew/v0.12.1.html @@ -0,0 +1,570 @@ + + + + + + + + + v0.12.1 (October 2022) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+

v0.12.1 (October 2022)#

+

This is an incremental release that is a recommended upgrade for all users. It addresses a handful of bugs / regressions in v0.12.0 and adds several features and enhancements to the new objects interface.

+
    +

  • Feature Added the objects.Text mark (#3051).

    • +

  • Feature Added the objects.Dash mark (#3074).

    • +

  • Feature Added the objects.Perc stat (#3063).

    • +

  • Feature Added the objects.Count stat (#3086).

    • +

  • Feature The objects.Band and objects.Range marks will now cover the full extent of the data if min / max variables are not explicitly assigned or added in a transform (#3056).

    • +

  • Enhancement Defaults The objects.Jitter move now applies a small amount of jitter by default (#3066).

    • +

  • Enhancement Defaults Axes with a objects.Nominal scale now appear like categorical axes in classic seaborn, with fixed margins, no grid, and an inverted y axis (#3069).

    • +

  • Enhancement API The objects.Continuous.label() method now accepts base=None to override the default formatter with a log transform (#3087).

    • +

  • Enhancement Fix Marks that sort along the orient axis (e.g. objects.Line) now use a stable algorithm (#3064).

    • +

  • Enhancement Fix Added a label parameter to pointplot(), which addresses a regression in 0.12.0 when pointplot() is passed to FacetGrid (#3016).

    • +

  • Fix Fixed a bug that caused an exception when more than two layers with the same mappings were added to objects.Plot (#3055).

    • +

  • Fix Made objects.PolyFit robust to missing data (#3010).

    • +

  • Fix Fixed a bug in objects.Plot that occurred when data assigned to the orient coordinate had zero variance (#3084).

    • +

  • Fix Fixed a regression in kdeplot() where passing cmap for an unfilled bivariate plot would raise an exception (#3065).

    • +

  • Fix Addressed a performance regression in lineplot() with a large number of unique x values (#3081).

    • +

  • Build Seaborn no longer contains doctest-style examples, simplifying the testing infrastructure (#3034).

    • +
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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.12.2.html b/archive/0.12/whatsnew/v0.12.2.html new file mode 100644 index 00000000..54962add --- /dev/null +++ b/archive/0.12/whatsnew/v0.12.2.html @@ -0,0 +1,564 @@ + + + + + + + + + v0.12.2 (December 2022) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.12.2 (December 2022)#

+

This is an incremental release that is a recommended upgrade for all users. It is very likely the final release of the 0.12 series and the last version to support Python 3.7.

+
    +

  • Feature Added the objects.KDE stat (#3111).

    • +

  • Feature Added the objects.Boolean scale (#3205).

    • +

  • Enhancement Improved user feedback for failures during plot compilation by catching exceptions and re-raising with a PlotSpecError that provides additional context. (#3203).

    • +

  • Fix Improved calculation of automatic mark widths with unshared facet axes (#3119).

    • +

  • Fix Improved robustness to empty data in several components of the objects interface (#3202).

    • +

  • Fix Fixed a bug where legends for numeric variables with large values would be incorrectly shown (i.e. with a missing offset or exponent; #3187).

    • +

  • Fix Fixed a regression in v0.12.0 where manually-added labels could have duplicate legend entries (#3116).

    • +

  • Fix Fixed a bug in histplot() with kde=True and log_scale=True where the curve was not scaled properly (#3173).

    • +

  • Fix Fixed a bug in relplot() where inner axis labels would be shown when axis sharing was disabled (#3180).

    • +

  • Fix Fixed a bug in objects.Continuous to avoid an exception with boolean data (#3189).

    • +
+
+ + +
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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.2.0.html b/archive/0.12/whatsnew/v0.2.0.html new file mode 100644 index 00000000..8016d348 --- /dev/null +++ b/archive/0.12/whatsnew/v0.2.0.html @@ -0,0 +1,729 @@ + + + + + + + + + v0.2.0 (December 2013) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.2.0 (December 2013)#

+

This is a major release from 0.1 with a number of API changes, enhancements, +and bug fixes.

+

Highlights include an overhaul of timeseries plotting to work intelligently +with dataframes, the new function interactplot() for visualizing continuous +interactions, bivariate kernel density estimates in kdeplot(), and +significant improvements to color palette handling.

+

Version 0.2 also introduces experimental support for Python 3.

+

In addition to the library enhancements, the documentation has been +substantially rewritten to reflect the new features and improve the +presentation of the ideas behind the package.

+
+

API changes#

+
    +

  • The tsplot() function was rewritten to accept data in a long-form +DataFrame and to plot different traces by condition. This introduced a +relatively minor but unavoidable API change, where instead of doing +sns.tsplot(time, heights), you now must do sns.tsplot(heights, +time=time) (the time parameter is now optional, for quicker +specification of simple plots). Additionally, the "obs_traces" and +"obs_points" error styles in tsplot() have been renamed to +"unit_traces" and "unit_points", respectively.

    • +

  • Functions that fit kernel density estimates (kdeplot() and +violinplot()) now use statsmodels instead of scipy, and the +parameters that influence the density estimate have changed accordingly. This +allows for increased flexibility in specifying the bandwidth and kernel, and +smarter choices for defining the range of the support. Default options should +produce plots that are very close to the old defaults.

    • +

  • The kdeplot() function now takes a second positional argument of data for +drawing bivariate densities.

    • +

  • The violin() function has been changed to violinplot(), for consistency. +In 0.2, violin will still work, but it will fire a UserWarning.

    • +
+
+
+

New plotting functions#

+
    +

  • The interactplot() function draws a contour plot for an interactive +linear model (i.e., the contour shows y-hat from the model y ~ x1 * +x2) over a scatterplot between the two predictor variables. This plot +should aid the understanding of an interaction between two continuous +variables.

    • +

  • The kdeplot() function can now draw a bivariate density estimate as a +contour plot if provided with two-dimensional input data.

    • +

  • The palplot() function provides a simple grid-based visualization of a +color palette.

    • +
+
+
+

Other changes#

+
+

Plotting functions#

+
    +

  • The corrplot() function can be drawn without the correlation coefficient +annotation and with variable names on the side of the plot to work with large +datasets.

    • +

  • Additionally, corrplot() sets the color palette intelligently based on +the direction of the specified test.

    • +

  • The distplot() histogram uses a reference rule to choose the bin size if it +is not provided.

    • +

  • Added the x_bins option in lmplot() for binning a continuous +predictor variable, allowing for clearer trends with many datapoints.

    • +

  • Enhanced support for labeling plot elements and axes based on name +attributes in several distribution plot functions and tsplot() for +smarter Pandas integration.

    • +

  • Scatter points in lmplot() are slightly transparent so it is easy to see +where observations overlap.

    • +

  • Added the order parameter to boxplot() and violinplot() to +control the order of the bins when using a Pandas object.

    • +

  • When an ax argument is not provided to a plotting function, it grabs the +currently active axis instead of drawing a new one.

    • +
+
+
+

Color palettes#

+
    +

  • Added the dark_palette() and blend_palette() for on-the-fly creation +of blended color palettes.

    • +

  • The color palette machinery is now intelligent about qualitative ColorBrewer +palettes (Set1, Paired, etc.), which are properly treated as discrete.

    • +

  • Seaborn color palettes (deep, muted, etc.) have been standardized in +terms of basic hue sequence, and all palettes now have 6 colors.

    • +

  • Introduced {mpl_palette}_d palettes, which make a palette with the basic +color scheme of the source palette, but with a sequential blend from dark +instead of light colors for use with line/scatter/contour plots.

    • +

  • Added the palette_context() function for blockwise color palettes +controlled by a with statement.

    • +
+
+
+

Plot styling#

+
    +

  • Added the despine() function for easily removing plot spines.

    • +

  • A new plot style, "ticks" has been added.

    • +

  • Tick labels are padded a bit farther from the axis in all styles, avoiding +collisions at (0, 0).

    • +
+
+
+

General package issues#

+
    +

  • Reorganized the package by breaking up the monolithic plotobjs module +into smaller modules grouped by general objective of the constituent plots.

    • +

  • Removed the scikits-learn dependency in moss.

    • +

  • Installing with pip should automatically install most missing dependencies.

    • +

  • The example notebooks are now used as an automated test suite.

    • +
+
+
+
+

Bug fixes#

+
    +

  • Fixed a bug where labels did not match data for boxplot() and violinplot() +when using a groupby.

    • +

  • Fixed a bug in the desaturate() function.

    • +

  • Fixed a bug in the coefplot() figure size calculation.

    • +

  • Fixed a bug where regplot() choked on list input.

    • +

  • Fixed buggy behavior when drawing horizontal boxplots.

    • +

  • Specifying bins for the distplot() histogram now works.

    • +

  • Fixed a bug where kdeplot() would reset the axis height and cut off +existing data.

    • +

  • All axis styling has been moved out of the top-level seaborn.set() +function, so context or color palette can be cleanly changed.

    • +
+
+
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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.2.1.html b/archive/0.12/whatsnew/v0.2.1.html new file mode 100644 index 00000000..e1f6bc10 --- /dev/null +++ b/archive/0.12/whatsnew/v0.2.1.html @@ -0,0 +1,585 @@ + + + + + + + + + v0.2.1 (December 2013) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+

v0.2.1 (December 2013)#

+

This is a bugfix release, with no new features.

+
+

Bug fixes#

+
    +

  • Changed the mechanics of violinplot() and boxplot() when using a +Series object as data and performing a groupby to assign data to +bins to address a problem that arises in Pandas 0.13.

    • +

  • Additionally fixed the groupby code to work with all styles of group +specification (specifically, using a dictionary or a function now works).

    • +

  • Fixed a bug where artifacts from the kde fitting could undershoot and create +a plot where the density axis starts below 0.

    • +

  • Ensured that data used for kde fitting is double-typed to avoid a low-level +statsmodels error.

    • +

  • Changed the implementation of the histogram bin-width reference rule to +take a ceiling of the estimated number of bins.

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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.3.0.html b/archive/0.12/whatsnew/v0.3.0.html new file mode 100644 index 00000000..e6579e8e --- /dev/null +++ b/archive/0.12/whatsnew/v0.3.0.html @@ -0,0 +1,641 @@ + + + + + + + + + v0.3.0 (March 2014) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.3.0 (March 2014)#

+

This is a major release from 0.2 with a number of enhancements to the plotting capabilities and styles. Highlights include FacetGrid, factorplot, jointplot(), and an overhaul to style management. There is also lots of new documentation, including an example gallery and reorganized tutorial.

+
+

New plotting functions#

+
    +

  • The FacetGrid class adds a new form of functionality to seaborn, providing a way to abstractly structure a grid of plots corresponding to subsets of a dataset. It can be used with a wide variety of plotting functions (including most of the matplotlib and seaborn APIs. See the tutorial for more information.

    • +

  • Version 0.3 introduces the factorplot function, which is similar in spirit to lmplot() but intended for use when the main independent variable is categorical instead of quantitative. factorplot can draw a plot in either a point or bar representation using the corresponding Axes-level functions pointplot() and barplot() (which are also new). Additionally, the factorplot function can be used to draw box plots on a faceted grid. For examples of how to use these functions, you can refer to the tutorial.

    • +

  • Another new function is jointplot(), which is built using the new JointGrid object. jointplot() generalizes the behavior of regplot() in previous versions of seaborn (regplot() has changed somewhat in 0.3; see below for details) by drawing a bivariate plot of the relationship between two variables with their marginal distributions drawn on the side of the plot. With jointplot(), you can draw a scatterplot or regression plot as before, but you can now also draw bivariate kernel densities or hexbin plots with appropriate univariate graphs for the marginal distributions. Additionally, it’s easy to use JointGrid directly to build up more complex plots when the default methods offered by jointplot() are not suitable for your visualization problem. The tutorial for JointGrid has more examples of how this object can be useful.

    • +

  • The residplot() function complements regplot() and can be quickly used to diagnose problems with a linear model by calculating and plotting the residuals of a simple regression. There is also a "resid" kind for jointplot().

    • +
+
+
+

API changes#

+
    +

  • The most noticeable change will be that regplot() no longer produces a multi-component plot with distributions in marginal axes. Instead. regplot() is now an “Axes-level” function that can be plotted into any existing figure on a specific set of axes. regplot() and lmplot() have also been unified (the latter uses the former behind the scenes), so all options for how to fit and represent the regression model can be used for both functions. To get the old behavior of regplot(), use jointplot() with kind="reg".

    • +

  • As noted above, lmplot() has been rewritten to exploit the FacetGrid machinery. This involves a few changes. The color keyword argument has been replaced with hue, for better consistency across the package. The hue parameter will always take a variable name, while color will take a color name or (in some cases) a palette. The lmplot() function now returns the FacetGrid used to draw the plot instance.

    • +

  • The functions that interact with matplotlib rc parameters have been updated and standardized. There are now three pairs of functions, axes_style() and set_style(), plotting_context() and set_context(), and color_palette() and set_palette(). In each case, the pairs take the exact same arguments. The first function defines and returns the parameters, and the second sets the matplotlib defaults. Additionally, the first function in each pair can be used in a with statement to temporarily change the defaults. Both the style and context functions also now accept a dictionary of matplotlib rc parameters to override the seaborn defaults, and set() now also takes a dictionary to update any of the matplotlib defaults. See the tutorial for more information.

    • +

  • The nogrid style has been deprecated and changed to white for more uniformity (i.e. there are now darkgrid, dark, whitegrid, and white styles).

    • +
+
+
+

Other changes#

+
+

Using the package#

+
    +

  • If you want to use plotting functions provided by the package without setting the matplotlib style to a seaborn theme, you can now do import seaborn.apionly as sns or from seaborn.apionly import lmplot, etc. This is using the (also new) reset_orig() function, which returns the rc parameters to what they are at matplotlib import time — i.e. they will respect any custom matplotlibrc settings on top of the matplotlib defaults.

    • +

  • The dependency load of the package has been reduced. It can now be installed and used with only numpy, scipy, matplotlib, and pandas. Although statsmodels is still recommended for full functionality, it is not required.

    • +
+
+
+

Plotting functions#

+
    +

  • lmplot() (and regplot()) have two new options for fitting regression models: lowess and robust. The former fits a nonparametric smoother, while the latter fits a regression using methods that are less sensitive to outliers.

    • +

  • The regression uncertainty in lmplot() and regplot() is now estimated with fewer bootstrap iterations, so plotting should be faster.

    • +

  • The univariate kdeplot() can now be drawn as a cumulative density plot.

    • +

  • Changed interactplot() to use a robust calculation of the data range when finding default limits for the contour colormap to work better when there are outliers in the data.

    • +
+
+
+

Style#

+
    +

  • There is a new style, dark, which shares most features with darkgrid but does not draw a grid by default.

    • +

  • There is a new function, offset_spines(), and a corresponding option in despine() called trim. Together, these can be used to make plots where the axis spines are offset from the main part of the figure and limited within the range of the ticks. This is recommended for use with the ticks style.

    • +

  • Other aspects of the seaborn styles have been tweaked for more attractive plots.

    • +
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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.3.1.html b/archive/0.12/whatsnew/v0.3.1.html new file mode 100644 index 00000000..1196338b --- /dev/null +++ b/archive/0.12/whatsnew/v0.3.1.html @@ -0,0 +1,590 @@ + + + + + + + + + v0.3.1 (April 2014) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.3.1 (April 2014)#

+

This is a minor release from 0.3 with fixes for several bugs.

+
+

Plotting functions#

+
    +

  • The size of the points in pointplot() and factorplot are now scaled with the linewidth for better aesthetics across different plotting contexts.

    • +

  • The pointplot() glyphs for different levels of the hue variable are drawn at different z-orders so that they appear uniform.

    • +
+
+
+

Bug Fixes#

+
    +

  • Fixed a bug in FacetGrid (and thus affecting lmplot and factorplot) that appeared when col_wrap was used with a number of facets that did not evenly divide into the column width.

    • +

  • Fixed an issue where the support for kernel density estimates was sometimes computed incorrectly.

    • +

  • Fixed a problem where hue variable levels that were not strings were missing in FacetGrid legends.

    • +

  • When passing a color palette list in a with statement, the entire palette is now used instead of the first six colors.

    • +
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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.4.0.html b/archive/0.12/whatsnew/v0.4.0.html new file mode 100644 index 00000000..19091d40 --- /dev/null +++ b/archive/0.12/whatsnew/v0.4.0.html @@ -0,0 +1,609 @@ + + + + + + + + + v0.4.0 (September 2014) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.4.0 (September 2014)#

+

This is a major release from 0.3. Highlights include new approaches for quick, high-level dataset exploration (along with a more flexible interface) and easy creation of perceptually-appropriate color palettes using the cubehelix system. Along with these additions, there are a number of smaller changes that make visualizing data with seaborn easier and more powerful.

+
+

Plotting functions#

+
    +

  • A new object, PairGrid, and a corresponding function pairplot(), for drawing grids of pairwise relationships in a dataset. This style of plot is sometimes called a “scatterplot matrix”, but the representation of the data in PairGrid is flexible and many styles other than scatterplots can be used. See the docs for more information. Note: due to a bug in older versions of matplotlib, you will have best results if you use these functions with matplotlib 1.4 or later.

    • +

  • The rules for choosing default color palettes when variables are mapped to different colors have been unified (and thus changed in some cases). Now when no specific palette is requested, the current global color palette will be used, unless the number of variables to be mapped exceeds the number of unique colors in the palette, in which case the "husl" palette will be used to avoid cycling.

    • +

  • Added a keyword argument hist_norm to distplot(). When a distplot() is now drawn without a KDE or parametric density, the histogram is drawn as counts instead of a density. This can be overridden by by setting hist_norm to True.

    • +

  • When using FacetGrid with a hue variable, the legend is no longer drawn by default when you call FacetGrid.map(). Instead, you have to call FacetGrid.add_legend() manually. This should make it easier to layer multiple plots onto the grid without having duplicated legends.

    • +

  • Made some changes to factorplot so that it behaves better when not all levels of the x variable are represented in each facet.

    • +

  • Added the logx option to regplot() for fitting the regression in log space.

    • +

  • When violinplot() encounters a bin with only a single observation, it will now plot a horizontal line at that value instead of erroring out.

    • +
+
+
+

Style and color palettes#

+
    +

  • Added the cubehelix_palette() function for generating sequential palettes from the cubehelix system. See the palette docs for more information on how these palettes can be used. There is also the choose_cubehelix() which will launch an interactive app to select cubehelix parameters in the notebook.

    • +

  • Added the xkcd_palette() and the xkcd_rgb dictionary so that colors can be specified with names from the xkcd color survey.

    • +

  • Added the font_scale option to plotting_context(), set_context(), and set(). font_scale can independently increase or decrease the size of the font elements in the plot.

    • +

  • Font-handling should work better on systems without Arial installed. This is accomplished by adding the font.sans-serif field to the axes_style definition with Arial and Liberation Sans prepended to matplotlib defaults. The font family can also be set through the font keyword argument in set(). Due to matplotlib bugs, this might not work as expected on matplotlib 1.3.

    • +

  • The despine() function gets a new keyword argument offset, which replaces the deprecated offset_spines() function. You no longer need to offset the spines before plotting data.

    • +

  • Added a default value for pdf.fonttype so that text in PDFs is editable in Adobe Illustrator.

    • +
+
+
+

Other API Changes#

+
    +

  • Removed the deprecated set_color_palette and palette_context functions. These were replaced in version 0.3 by the set_palette() function and ability to use color_palette() directly in a with statement.

    • +

  • Removed the ability to specify a nogrid style, which was renamed to white in 0.3.

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v0.5.0 (November 2014)#

+

This is a major release from 0.4. Highlights include new functions for plotting heatmaps, possibly while applying clustering algorithms to discover structured relationships. These functions are complemented by new custom colormap functions and a full set of IPython widgets that allow interactive selection of colormap parameters. The palette tutorial has been rewritten to cover these new tools and more generally provide guidance on how to use color in visualizations. There are also a number of smaller changes and bugfixes.

+
+

Plotting functions#

+
    +

  • Added the heatmap() function for visualizing a matrix of data by color-encoding the values. See the docs for more information.

    • +

  • Added the clustermap() function for clustering and visualizing a matrix of data, with options to label individual rows and columns by colors. See the docs for more information. This work was lead by Olga Botvinnik.

    • +

  • lmplot() and pairplot() get a new keyword argument, markers. This can be a single kind of marker or a list of different markers for each level of the hue variable. Using different markers for different hues should let plots be more comprehensible when reproduced to black-and-white (i.e. when printed). See the github pull request (#323) for examples.

    • +

  • More generally, there is a new keyword argument in FacetGrid and PairGrid, hue_kws. This similarly lets plot aesthetics vary across the levels of the hue variable, but more flexibly. hue_kws should be a dictionary that maps the name of keyword arguments to lists of values that are as long as the number of levels of the hue variable.

    • +

  • The argument subplot_kws has been added to FacetGrid. This allows for faceted plots with custom projections, including maps with Cartopy.

    • +
+
+
+

Color palettes#

+
    +

  • Added two new functions to create custom color palettes. For sequential palettes, you can use the light_palette() function, which takes a seed color and creates a ramp from a very light, desaturated variant of it. For diverging palettes, you can use the diverging_palette() function to create a balanced ramp between two endpoints to a light or dark midpoint. See the palette tutorial for more information.

    • +

  • Added the ability to specify the seed color for light_palette() and dark_palette() as a tuple of husl or hls space values or as a named xkcd color. The interpretation of the seed color is now provided by the new input parameter to these functions.

    • +

  • Added several new interactive palette widgets: choose_colorbrewer_palette(), choose_light_palette(), choose_dark_palette(), and choose_diverging_palette(). For consistency, renamed the cubehelix widget to choose_cubehelix_palette() (and fixed a bug where the cubehelix palette was reversed). These functions also now return either a color palette list or a matplotlib colormap when called, and that object will be live-updated as you play with the widget. This should make it easy to iterate over a plot until you find a good representation for the data. See the Github pull request or this notebook (download it to use the widgets) for more information.

    • +

  • Overhauled the color palette tutorial to organize the discussion by class of color palette and provide more motivation behind the various choices one might make when choosing colors for their data.

    • +
+
+
+

Bug fixes#

+
    +

  • Fixed a bug in PairGrid that gave incorrect results (or a crash) when the input DataFrame has a non-default index.

    • +

  • Fixed a bug in PairGrid where passing columns with a date-like datatype raised an exception.

    • +

  • Fixed a bug where lmplot() would show a legend when the hue variable was also used on either the rows or columns (making the legend redundant).

    • +

  • Worked around a matplotlib bug that was forcing outliers in boxplot() to appear as blue.

    • +

  • kdeplot() now accepts pandas Series for the data and data2 arguments.

    • +

  • Using a non-default correlation method in corrplot() now implies sig_stars=False as the permutation test used to significance values for the correlations uses a pearson metric.

    • +

  • Removed pdf.fonttype from the style definitions, as the value used in version 0.4 resulted in very large PDF files.

    • +
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+ + + + + + + + + \ No newline at end of file diff --git a/archive/0.12/whatsnew/v0.5.1.html b/archive/0.12/whatsnew/v0.5.1.html new file mode 100644 index 00000000..184ead06 --- /dev/null +++ b/archive/0.12/whatsnew/v0.5.1.html @@ -0,0 +1,557 @@ + + + + + + + + + v0.5.1 (November 2014) — seaborn 0.12.2 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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v0.5.1 (November 2014)#

+

This is a bugfix release that includes a workaround for an issue in matplotlib 1.4.2 and fixes for two bugs in functions that were new in 0.5.0.

+
    +

  • Implemented a workaround for a bug in matplotlib 1.4.2 that prevented point markers from being drawn when the seaborn styles had been set. See this github issue for more information.

    • +

  • Fixed a bug in heatmap() where the mask was vertically reversed relative to the data.

    • +

  • Fixed a bug in clustermap() when using nested lists of side colors.

    • +
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v0.6.0 (June 2015)#

+

This is a major release from 0.5. The main objective of this release was to unify the API for categorical plots, which means that there are some relatively large API changes in some of the older functions. See below for details of those changes, which may break code written for older versions of seaborn. There are also some new functions (stripplot(), and countplot()), numerous enhancements to existing functions, and bug fixes.

+

Additionally, the documentation has been completely revamped and expanded for the 0.6 release. Now, the API docs page for each function has multiple examples with embedded plots showing how to use the various options. These pages should be considered the most comprehensive resource for examples, and the tutorial pages are now streamlined and oriented towards a higher-level overview of the various features.

+
+

Changes and updates to categorical plots#

+

In version 0.6, the “categorical” plots have been unified with a common API. This new category of functions groups together plots that show the relationship between one numeric variable and one or two categorical variables. This includes plots that show distribution of the numeric variable in each bin (boxplot(), violinplot(), and stripplot()) and plots that apply a statistical estimation within each bin (pointplot(), barplot(), and countplot()). There is a new tutorial chapter that introduces these functions.

+

The categorical functions now each accept the same formats of input data and can be invoked in the same way. They can plot using long- or wide-form data, and can be drawn vertically or horizontally. When long-form data is used, the orientation of the plots is inferred from the types of the input data. Additionally, all functions natively take a hue variable to add a second layer of categorization.

+

With the (in some cases new) API, these functions can all be drawn correctly by FacetGrid. However, factorplot can also now create faceted versions of any of these kinds of plots, so in most cases it will be unnecessary to use FacetGrid directly. By default, factorplot draws a point plot, but this is controlled by the kind parameter.

+

Here are details on what has changed in the process of unifying these APIs:

+
    +

  • Changes to boxplot() and violinplot() will probably be the most disruptive. Both functions maintain backwards-compatibility in terms of the kind of data they can accept, but the syntax has changed to be more similar to other seaborn functions. These functions are now invoked with x and/or y parameters that are either vectors of data or names of variables in a long-form DataFrame passed to the new data parameter. You can still pass wide-form DataFrames or arrays to data, but it is no longer the first positional argument. See the github pull request (#410) for more information on these changes and the logic behind them.

    • +

  • As pointplot() and barplot() can now plot with the major categorical variable on the y axis, the x_order parameter has been renamed to order.

    • +

  • Added a hue argument to boxplot() and violinplot(), which allows for nested grouping the plot elements by a third categorical variable. For violinplot(), this nesting can also be accomplished by splitting the violins when there are two levels of the hue variable (using split=True). To make this functionality feasible, the ability to specify where the plots will be draw in data coordinates has been removed. These plots now are drawn at set positions, like (and identical to) barplot() and pointplot().

    • +

  • Added a palette parameter to boxplot()/violinplot(). The color parameter still exists, but no longer does double-duty in accepting the name of a seaborn palette. palette supersedes color so that it can be used with a FacetGrid.

    • +
+

Along with these API changes, the following changes/enhancements were made to the plotting functions:

+
    +

  • The default rules for ordering the categories has changed. Instead of automatically sorting the category levels, the plots now show the levels in the order they appear in the input data (i.e., the order given by Series.unique()). Order can be specified when plotting with the order and hue_order parameters. Additionally, when variables are pandas objects with a “categorical” dtype, the category order is inferred from the data object. This change also affects FacetGrid and PairGrid.

    • +

  • Added the scale and scale_hue parameters to violinplot(). These control how the width of the violins are scaled. The default is area, which is different from how the violins used to be drawn. Use scale='width' to get the old behavior.

    • +

  • Used a different style for the box kind of interior plot in violinplot(), which shows the whisker range in addition to the quartiles. Use inner='quartile' to get the old style.

    • +
+
+
+

New plotting functions#

+
    +

  • Added the stripplot() function, which draws a scatterplot where one of the variables is categorical. This plot has the same API as boxplot() and violinplot(). It is useful both on its own and when composed with one of these other plot kinds to show both the observations and underlying distribution.

    • +

  • Added the countplot() function, which uses a bar plot representation to show counts of variables in one or more categorical bins. This replaces the old approach of calling barplot() without a numeric variable.

    • +
+
+
+

Other additions and changes#

+
    +

  • The corrplot() and underlying symmatplot() functions have been deprecated in favor of heatmap(), which is much more flexible and robust. These two functions are still available in version 0.6, but they will be removed in a future version.

    • +

  • Added the set_color_codes() function and the color_codes argument to set() and set_palette(). This changes the interpretation of shorthand color codes (i.e. “b”, “g”, k”, etc.) within matplotlib to use the values from one of the named seaborn palettes (i.e. “deep”, “muted”, etc.). That makes it easier to have a more uniform look when using matplotlib functions directly with seaborn imported. This could be disruptive to existing plots, so it does not happen by default. It is possible this could change in the future.

    • +

  • The color_palette() function no longer trims palettes that are longer than 6 colors when passed into it.

    • +

  • Added the as_hex method to color palette objects, to return a list of hex codes rather than rgb tuples.

    • +

  • jointplot() now passes additional keyword arguments to the function used to draw the plot on the joint axes.

    • +

  • Changed the default linewidths in heatmap() and clustermap() to 0 so that larger matrices plot correctly. This parameter still exists and can be used to get the old effect of lines demarcating each cell in the heatmap (the old default linewidths was 0.5).

    • +

  • heatmap() and clustermap() now automatically use a mask for missing values, which previously were shown with the “under” value of the colormap per default plt.pcolormesh behavior.

    • +

  • Added the seaborn.crayons dictionary and the crayon_palette() function to define colors from the 120 box (!) of Crayola crayons.

    • +

  • Added the line_kws parameter to residplot() to change the style of the lowess line, when used.

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  • Added open-ended **kwargs to the add_legend method on FacetGrid and PairGrid, which will pass additional keyword arguments through when calling the legend function on the Figure or Axes.

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  • Added the gridspec_kws parameter to FacetGrid, which allows for control over the size of individual facets in the grid to emphasize certain plots or account for differences in variable ranges.

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  • The interactive palette widgets now show a continuous colorbar, rather than a discrete palette, when as_cmap is True.

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  • The default Axes size for pairplot() and PairGrid is now slightly smaller.

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  • Added the shade_lowest parameter to kdeplot() which will set the alpha for the lowest contour level to 0, making it easier to plot multiple bivariate distributions on the same axes.

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  • The height parameter of rugplot() is now interpreted as a function of the axis size and is invariant to changes in the data scale on that axis. The rug lines are also slightly narrower by default.

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  • Added a catch in distplot() when calculating a default number of bins. For highly skewed data it will now use sqrt(n) bins, where previously the reference rule would return “infinite” bins and cause an exception in matplotlib.

    • +

  • Added a ceiling (50) to the default number of bins used for distplot() histograms. This will help avoid confusing errors with certain kinds of datasets that heavily violate the assumptions of the reference rule used to get a default number of bins. The ceiling is not applied when passing a specific number of bins.

    • +

  • The various property dictionaries that can be passed to plt.boxplot are now applied after the seaborn restyling to allow for full customizability.

    • +

  • Added a savefig method to JointGrid that defaults to a tight bounding box to make it easier to save figures using this class, and set a tight bbox as the default for the savefig method on other Grid objects.

    • +

  • You can now pass an integer to the xticklabels and yticklabels parameter of heatmap() (and, by extension, clustermap()). This will make the plot use the ticklabels inferred from the data, but only plot every n label, where n is the number you pass. This can help when visualizing larger matrices with some sensible ordering to the rows or columns of the dataframe.

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  • Added "figure.facecolor" to the style parameters and set the default to white.

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  • The load_dataset() function now caches datasets locally after downloading them, and uses the local copy on subsequent calls.

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Bug fixes#

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  • Fixed bugs in clustermap() where the mask and specified ticklabels were not being reorganized using the dendrograms.

    • +

  • Fixed a bug in FacetGrid and PairGrid that lead to incorrect legend labels when levels of the hue variable appeared in hue_order but not in the data.

    • +

  • Fixed a bug in FacetGrid.set_xticklabels() or FacetGrid.set_yticklabels() when col_wrap is being used.

    • +

  • Fixed a bug in PairGrid where the hue_order parameter was ignored.

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  • Fixed two bugs in despine() that caused errors when trying to trim the spines on plots that had inverted axes or no ticks.

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  • Improved support for the margin_titles option in FacetGrid, which can now be used with a legend.

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v0.7.0 (January 2016)#

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This is a major release from 0.6. The main new feature is swarmplot() which implements the beeswarm approach for drawing categorical scatterplots. There are also some performance improvements, bug fixes, and updates for compatibility with new versions of dependencies.

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  • Added the swarmplot() function, which draws beeswarm plots. These are categorical scatterplots, similar to those produced by stripplot(), but position of the points on the categorical axis is chosen to avoid overlapping points. See the categorical plot tutorial for more information.

    • +

  • Changed some of the stripplot() defaults to be closer to swarmplot(). Points are now somewhat smaller, have no outlines, and are not split by default when using hue. These settings remain customizable through function parameters.

    • +

  • Added an additional rule when determining category order in categorical plots. Now, when numeric variables are used in a categorical role, the default behavior is to sort the unique levels of the variable (i.e they will be in proper numerical order). This can still be overridden by the appropriate {*_}order parameter, and variables with a category datatype will still follow the category order even if the levels are strictly numerical.

    • +

  • Changed how stripplot() draws points when using hue nesting with split=False so that the different hue levels are not drawn strictly on top of each other.

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  • Improve performance for large dendrograms in clustermap().

    • +

  • Added font.size to the plotting context definition so that the default output from plt.text will be scaled appropriately.

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  • Fixed a bug in clustermap() when fastcluster is not installed.

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  • Fixed a bug in the zscore calculation in clustermap().

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  • Fixed a bug in distplot() where sometimes the default number of bins would not be an integer.

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  • Fixed a bug in stripplot() where a legend item would not appear for a hue level if there were no observations in the first group of points.

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  • Heatmap colorbars are now rasterized for better performance in vector plots.

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  • Added workarounds for some matplotlib boxplot issues, such as strange colors of outlier points.

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  • Added workarounds for an issue where violinplot edges would be missing or have random colors.

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  • Added a workaround for an issue where only one heatmap() cell would be annotated on some matplotlib backends.

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  • Fixed a bug on newer versions of matplotlib where a colormap would be erroneously applied to scatterplots with only three observations.

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  • Updated seaborn for compatibility with matplotlib 1.5.

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  • Added compatibility for various IPython (and Jupyter) versions in functions that use widgets.

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v0.7.1 (June 2016)#

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  • Added the ability to put “caps” on the error bars that are drawn by barplot() or pointplot() (and, by extension, factorplot). Additionally, the line width of the error bars can now be controlled. These changes involve the new parameters capsize and errwidth. See the github pull request (#898) for examples of usage.

    • +

  • Improved the row and column colors display in clustermap(). It is now possible to pass Pandas objects for these elements and, when possible, the semantic information in the Pandas objects will be used to add labels to the plot. When Pandas objects are used, the color data is matched against the main heatmap based on the index, not on position. This is more accurate, but it may lead to different results if current code assumed positional matching.

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  • Improved the luminance calculation that determines the annotation color in heatmap().

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  • The annot parameter of heatmap() now accepts a rectangular dataset in addition to a boolean value. If a dataset is passed, its values will be used for the annotations, while the main dataset will be used for the heatmap cell colors.

    • +

  • Fixed a bug in FacetGrid that appeared when using col_wrap with missing col levels.

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  • Made it possible to pass a tick locator object to the heatmap() colorbar.

    • +

  • Made it possible to use different styles (e.g., step) for PairGrid histograms when there are multiple hue levels.

    • +

  • Fixed a bug in scipy-based univariate kernel density bandwidth calculation.

    • +

  • The reset_orig() function (and, by extension, importing seaborn.apionly) resets matplotlib rcParams to their values at the time seaborn itself was imported, which should work better with rcParams changed by the jupyter notebook backend.

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  • Removed some objects from the top-level seaborn namespace.

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  • Improved unicode compatibility in FacetGrid.

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v0.8.0 (July 2017)#

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  • The default style is no longer applied when seaborn is imported. It is now necessary to explicitly call set() or one or more of set_style(), set_context(), and set_palette(). Correspondingly, the seaborn.apionly module has been deprecated.

    • +

  • Changed the behavior of heatmap() (and by extension clustermap()) when plotting divergent dataesets (i.e. when the center parameter is used). Instead of extending the lower and upper limits of the colormap to be symmetrical around the center value, the colormap is modified so that its middle color corresponds to center. This means that the full range of the colormap will not be used (unless the data or specified vmin and vmax are symmetric), but the upper and lower limits of the colorbar will correspond to the range of the data. See the Github pull request (#1184) for examples of the behavior.

    • +

  • Removed automatic detection of diverging data in heatmap() (and by extension clustermap()). If you want the colormap to be treated as diverging (see above), it is now necessary to specify the center value. When no colormap is specified, specifying center will still change the default to be one that is more appropriate for displaying diverging data.

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  • Added four new colormaps, created using viscm for perceptual uniformity. The new colormaps include two sequential colormaps (“rocket” and “mako”) and two diverging colormaps (“icefire” and “vlag”). These colormaps are registered with matplotlib on seaborn import and the colormap objects can be accessed in the seaborn.cm namespace.

    • +

  • Changed the default heatmap() colormaps to be “rocket” (in the case of sequential data) or “icefire” (in the case of diverging data). Note that this change reverses the direction of the luminance ramp from the previous defaults. While potentially confusing and disruptive, this change better aligns the seaborn defaults with the new matplotlib default colormap (“viridis”) and arguably better aligns the semantics of a “heat” map with the appearance of the colormap.

    • +

  • Added "auto" as a (default) option for tick labels in heatmap() and clustermap(). This will try to estimate how many ticks can be labeled without the text objects overlapping, which should improve performance for larger matrices.

    • +

  • Added the dodge parameter to boxplot(), violinplot(), and barplot() to allow use of hue without changing the position or width of the plot elements, as when the hue variable is not nested within the main categorical variable.

    • +

  • Correspondingly, the split parameter for stripplot() and swarmplot() has been renamed to dodge for consistency with the other categorical functions (and for differentiation from the meaning of split in violinplot()).

    • +

  • Added the ability to draw a colorbar for a bivariate kdeplot() with the cbar parameter (and related cbar_ax and cbar_kws parameters).

    • +

  • Added the ability to use error bars to show standard deviations rather than bootstrap confidence intervals in most statistical functions by putting ci="sd".

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  • Allow side-specific offsets in despine().

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  • Figure size is no longer part of the seaborn plotting context parameters.

    • +

  • Put a cap on the number of bins used in jointplot() for type=="hex" to avoid hanging when the reference rule prescribes too many.

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  • Changed the y axis in heatmap(). Instead of reversing the rows of the data internally, the y axis is now inverted. This may affect code that draws on top of the heatmap in data coordinates.

    • +

  • Turn off dendrogram axes in clustermap() rather than setting the background color to white.

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  • New matplotlib qualitative palettes (e.g. “tab10”) are now handled correctly.

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  • Some modules and functions have been internally reorganized; there should be no effect on code that uses the seaborn namespace.

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  • Added a deprecation warning to tsplot function to indicate that it will be removed or replaced with a substantially altered version in a future release.

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  • The interactplot and coefplot functions are officially deprecated and will be removed in a future release.

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v0.8.1 (September 2017)#

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  • Added a warning in FacetGrid when passing a categorical plot function without specifying order (or hue_order when hue is used), which is likely to produce a plot that is incorrect.

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  • Improved compatibility between FacetGrid or PairGrid and interactive matplotlib backends so that the legend no longer remains inside the figure when using legend_out=True.

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  • Changed categorical plot functions with small plot elements to use dark_palette() instead of light_palette() when generating a sequential palette from a specified color.

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  • Improved robustness of kdeplot() and distplot() to data with fewer than two observations.

    • +

  • Fixed a bug in clustermap() when using yticklabels=False.

    • +

  • Fixed a bug in pointplot() where colors were wrong if exactly three points were being drawn.

    • +

  • Fixed a bug in pointplot() where legend entries for missing data appeared with empty markers.

    • +

  • Fixed a bug in clustermap() where an error was raised when annotating the main heatmap and showing category colors.

    • +

  • Fixed a bug in clustermap() where row labels were not being properly rotated when they overlapped.

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  • Fixed a bug in kdeplot() where the maximum limit on the density axes was not being updated when multiple densities were drawn.

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  • Improved compatibility with future versions of pandas.

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v0.9.0 (July 2018)#

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This is a major release with several substantial and long-desired new features. There are also updates/modifications to the themes and color palettes that give better consistency with matplotlib 2.0 and some notable API changes.

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New relational plots#

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Three completely new plotting functions have been added: relplot(), scatterplot(), and lineplot(). The first is a figure-level interface to the latter two that combines them with a FacetGrid. The functions bring the high-level, dataset-oriented API of the seaborn categorical plotting functions to more general plots (scatter plots and line plots).

+

These functions can visualize a relationship between two numeric variables while mapping up to three additional variables by modifying hue, size, and/or style semantics. The common high-level API is implemented differently in the two functions. For example, the size semantic in scatterplot() scales the area of scatter plot points, but in lineplot() it scales width of the line plot lines. The API is dataset-oriented, meaning that in both cases you pass the variable in your dataset rather than directly specifying the matplotlib parameters to use for point area or line width.

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Another way the relational functions differ from existing seaborn functionality is that they have better support for using numeric variables for hue and size semantics. This functionality may be propagated to other functions that can add a hue semantic in future versions; it has not been in this release.

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The lineplot() function also has support for statistical estimation and is replacing the older tsplot function, which still exists but is marked for removal in a future release. lineplot() is better aligned with the API of the rest of the library and more flexible in showing relationships across additional variables by modifying the size and style semantics independently. It also has substantially improved support for date and time data, a major pain factor in tsplot. The cost is that some of the more esoteric options in tsplot for representing uncertainty (e.g. a colormapped KDE of the bootstrap distribution) have not been implemented in the new function.

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There is quite a bit of new documentation that explains these new functions in more detail, including detailed examples of the various options in the API reference and a more verbose tutorial.

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These functions should be considered in a “stable beta” state. They have been thoroughly tested, but some unknown corner cases may remain to be found. The main features are in place, but not all planned functionality has been implemented. There are planned improvements to some elements, particularly the default legend, that are a little rough around the edges in this release. Finally, some of the default behavior (e.g. the default range of point/line sizes) may change somewhat in future releases.

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Updates to themes and palettes#

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Several changes have been made to the seaborn style themes, context scaling, and color palettes. In general the aim of these changes was to make the seaborn styles more consistent with the style updates in matplotlib 2.0 and to leverage some of the new style parameters for better implementation of some aspects of the seaborn styles. Here is a list of the changes:

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  • Reorganized and updated some axes_style()/plotting_context() parameters to take advantage of improvements in the matplotlib 2.0 update. The biggest change involves using several new parameters in the “style” spec while moving parameters that used to implement the corresponding aesthetics to the “context” spec. For example, axes spines and ticks are now off instead of having their width/length zeroed out for the darkgrid style. That means the width/length of these elements can now be scaled in different contexts. The effect is a more cohesive appearance of the plots, especially in larger contexts. These changes include only minimal support for the 1.x matplotlib series. Users who are stuck on matplotlib 1.5 but wish to use seaborn styling may want to use the seaborn parameters that can be accessed through the matplotlib stylesheet interface.

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  • Updated the seaborn palettes (“deep”, “muted”, “colorblind”, etc.) to correspond with the new 10-color matplotlib default. The legacy palettes are now available at “deep6”, “muted6”, “colorblind6”, etc. Additionally, a few individual colors were tweaked for better consistency, aesthetics, and accessibility.

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  • Calling color_palette() (or set_palette()) with a named qualitative palettes (i.e. one of the seaborn palettes, the colorbrewer qualitative palettes, or the matplotlib matplotlib tableau-derived palettes) and no specified number of colors will return all of the colors in the palette. This means that for some palettes, the returned list will have a different length than it did in previous versions.

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  • Enhanced color_palette() to accept a parameterized specification of a cubehelix palette in in a string, prefixed with "ch:" (e.g. "ch:-.1,.2,l=.7"). Note that keyword arguments can be spelled out or referenced using only their first letter. Reversing the palette is accomplished by appending "_r", as with other matplotlib colormaps. This specification will be accepted by any seaborn function with a palette= parameter.

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  • Slightly increased the base font sizes in plotting_context() and increased the scaling factors for "talk" and "poster" contexts.

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  • Calling set() will now call set_color_codes() to re-assign the single letter color codes by default

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API changes#

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A few functions have been renamed or have had changes to their default parameters.

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  • The factorplot function has been renamed to catplot(). The new name ditches the original R-inflected terminology to use a name that is more consistent with terminology in pandas and in seaborn itself. This change should hopefully make catplot() easier to discover, and it should make more clear what its role is. factorplot still exists and will pass its arguments through to catplot() with a warning. It may be removed eventually, but the transition will be as gradual as possible.

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  • The other reason that the factorplot name was changed was to ease another alteration which is that the default kind in catplot() is now "strip" (corresponding to stripplot()). This plots a categorical scatter plot which is usually a much better place to start and is more consistent with the default in relplot(). The old default style in factorplot ("point", corresponding to pointplot()) remains available if you want to show a statistical estimation.

    • +

  • The lvplot function has been renamed to boxenplot(). The “letter-value” terminology that was used to name the original kind of plot is obscure, and the abbreviation to lv did not help anything. The new name should make the plot more discoverable by describing its format (it plots multiple boxes, also known as “boxen”). As with factorplot, the lvplot function still exists to provide a relatively smooth transition.

    • +

  • Renamed the size parameter to height in multi-plot grid objects (FacetGrid, PairGrid, and JointGrid) along with functions that use them (factorplot, lmplot(), pairplot(), and jointplot()) to avoid conflicts with the size parameter that is used in scatterplot and lineplot (necessary to make relplot() work) and also makes the meaning of the parameter a bit more clear.

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  • Changed the default diagonal plots in pairplot() to use func:kdeplot when a "hue" dimension is used.

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  • Deprecated the statistical annotation component of JointGrid. The method is still available but will be removed in a future version.

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  • Two older functions that were deprecated in earlier versions, coefplot and interactplot, have undergone final removal from the code base.

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Documentation improvements#

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There has been some effort put into improving the documentation. The biggest change is that the introduction to the library has been completely rewritten to provide much more information and, critically, examples. In addition to the high-level motivation, the introduction also covers some important topics that are often sources of confusion, like the distinction between figure-level and axes-level functions, how datasets should be formatted for use in seaborn, and how to customize the appearance of the plots.

+

Other improvements have been made throughout, most notably a thorough re-write of the categorical tutorial.

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Other small enhancements and bug fixes#

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  • Changed rugplot() to plot a matplotlib LineCollection instead of many Line2D objects, providing a big speedup for large arrays.

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  • Changed the default off-diagonal plots to use scatterplot(). (Note that the "hue" currently draws three separate scatterplots instead of using the hue semantic of the scatterplot function).

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  • Changed color handling when using kdeplot() with two variables. The default colormap for the 2D density now follows the color cycle, and the function can use color and label kwargs, adding more flexibility and avoiding a warning when using with multi-plot grids.

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  • Added the subplot_kws parameter to PairGrid for more flexibility.

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  • Removed a special case in PairGrid that defaulted to drawing stacked histograms on the diagonal axes.

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  • Fixed jointplot()/JointGrid and regplot() so that they now accept list inputs.

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  • Fixed a bug in FacetGrid when using a single row/column level or using col_wrap=1.

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  • Fixed functions that set axis limits so that they preserve auto-scaling state on matplotlib 2.0.

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  • Avoided an error when using matplotlib backends that cannot render a canvas (e.g. PDF).

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  • Changed the install infrastructure to explicitly declare dependencies in a way that pip is aware of. This means that pip install seaborn will now work in an empty environment. Additionally, the dependencies are specified with strict minimal versions.

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  • Updated the testing infrastructure to execute tests with pytest (although many individual tests still use nose assertion).

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v0.9.1 (January 2020)#

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This is a minor release with a number of bug fixes and adaptations to changes in seaborn’s dependencies. There are also several new features.

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This is the final version of seaborn that will support Python 2.7 or 3.5.

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New features#

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  • Added more control over the arrangement of the elements drawn by clustermap() with the {dendrogram,colors}_ratio and cbar_pos parameters. Additionally, the default organization and scaling with different figure sizes has been improved.

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  • Added the corner option to PairGrid and pairplot() to make a grid without the upper triangle of bivariate axes.

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  • Added the ability to seed the random number generator for the bootstrap used to define error bars in several plots. Relevant functions now have a seed parameter, which can take either fixed seed (typically an int) or a numpy random number generator object (either the newer numpy.random.Generator or the older numpy.random.mtrand.RandomState).

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  • Generalized the idea of “diagonal” axes in PairGrid to any axes that share an x and y variable.

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  • In PairGrid, the hue variable is now excluded from the default list of variables that make up the rows and columns of the grid.

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  • Exposed the layout_pad parameter in PairGrid and set a smaller default than what matptlotlib sets for more efficient use of space in dense grids.

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  • It is now possible to force a categorical interpretation of the hue variable in a relational plot by passing the name of a categorical palette (e.g. "deep", or "Set2"). This complements the (previously supported) option of passing a list/dict of colors.

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  • Added the tree_kws parameter to clustermap() to control the properties of the lines in the dendrogram.

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  • Added the ability to pass hierarchical label names to the FacetGrid legend, which also fixes a bug in relplot() when the same label appeared in different semantics.

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  • Improved support for grouping observations based on pandas index information in categorical plots.

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Bug fixes and adaptations#

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  • Avoided an error when singular data is passed to kdeplot(), issuing a warning instead. This makes pairplot() more robust.

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  • Fixed the behavior of dropna in PairGrid to properly exclude null datapoints from each plot when set to True.

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  • Fixed an issue where regplot() could interfere with other axes in a multi-plot matplotlib figure.

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  • Semantic variables with a category data type will always be treated as categorical in relational plots.

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  • Avoided a warning about color specifications that arose from boxenplot() on newer matplotlibs.

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  • Adapted to a change in how matplotlib scales axis margins, which caused multiple calls to regplot() with truncate=False to progressively expand the x axis limits. Because there are currently limitations on how autoscaling works in matplotlib, the default value for truncate in seaborn has also been changed to True.

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  • Relational plots no longer error when hue/size data are inferred to be numeric but stored with a string datatype.

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  • Relational plots now consider semantics with only a single value that can be interpreted as boolean (0 or 1) to be categorical, not numeric.

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  • Relational plots now handle list or dict specifications for sizes correctly.

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  • Fixed an issue in pointplot() where missing levels of a hue variable would cause an exception after a recent update in matplotlib.

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  • Fixed a bug when setting the rotation of x tick labels on a FacetGrid.

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  • Fixed a bug where values would be excluded from categorical plots when only one variable was a pandas Series with a non-default index.

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  • Fixed a bug when using Series objects as arguments for x_partial or y_partial in regplot().

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  • Fixed a bug when passing a norm object and using color annotations in clustermap().

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  • Fixed a bug where annotations were not rearranged to match the clustering in clustermap().

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  • Fixed a bug when trying to call set() while specifying a list of colors for the palette.

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  • Fixed a bug when resetting the color code short-hands to the matplotlib default.

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  • Avoided errors from stricter type checking in upcoming numpy changes.

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  • Avoided error/warning in lineplot() when plotting categoricals with empty levels.

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  • Allowed colors to be passed through to a bivariate kdeplot().

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  • Standardized the output format of custom color palette functions.

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  • Fixed a bug where legends for numerical variables in a relational plot could show a surprisingly large number of decimal places.

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  • Improved robustness to missing values in distribution plots.

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  • Made it possible to specify the location of the FacetGrid legend using matplotlib keyword arguments.

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