Gadfly does not plot?

[hbauschke]

Hello,

the following seems to give only trouble and unfortunately not plot:

julia> using Gadfly
Warning: Possible conflict in library symbol dtrtri_
Warning: Possible conflict in library symbol dgetri_
Warning: Possible conflict in library symbol dgetrf_

Warning: New definition 
    |(NAtype,Any) at /Users/bauschke/.julia/DataArrays/src/operators.jl:502
is ambiguous with: 
    |(Any,SynchronousStepCollection) at /Users/bauschke/.julia/BinDeps/src/BinDeps.jl:286.
To fix, define 
    |(NAtype,SynchronousStepCollection)
before the new definition.
Warning: New definition 
    |(Any,NAtype) at /Users/bauschke/.julia/DataArrays/src/operators.jl:502
is ambiguous with: 
    |(SynchronousStepCollection,Any) at /Users/bauschke/.julia/BinDeps/src/BinDeps.jl:283.
To fix, define 
    |(SynchronousStepCollection,NAtype)
before the new definition.

julia> plot([sin,cos],0,30)
Plot(...)

Cheers,
Heinz

[aviks: format code block]

[staticfloat]

Note that you need to explicitly call draw() in order to write out to a file.

@dcjones I think perhaps it might be good to explicitly state in the manual when Gadfly actually pops something up on screen (Only in IJulia I believe?) and when it only writes out to a file (only with explicit calls to draw()?)

[wlbksy]

a weird thing about runing the same code on Win64 is that, the file generated by draw is locked by julia.
Maybe it's the same thing as JuliaLang/julia#4664

[dcjones]

@staticfloat Yeah, I should make that more clear. Really it should show the plot somehow when plot is called, I've just gotten so used using ijulia that I haven't bothered.

@wlbksy I made a change recently that may explain that. Is that causing problems?

[wlbksy]

I was expecting the generated figure is available right after call draw . A locked figure can not be open by ImageViewer .

[dcjones]

@wlbksy It should be fixed now. I didn't realize windows always locked open files.

[vks]

Just calling plot() does not give any visualization at all. Calling draw() works.

Is this intended? If it is, the documentation does not say anything about it. Having the pictures right after the plot commands suggests that calling plot() would give an interactive window, like in most other plotting packages.

[dcjones]

It's probably something that should be added. At one point the behavior was to write a plot to a temporary file and try to open it in a web browser. That was a little clumsy, but it might be preferable to doing nothing. The alternative would be to use Gtk or Tk, which I'm not crazy about either because I want Gadfly to work without depending on external libraries.

Also, plot by itself does show the plot inline in IJulia, which is often a nicer way of doing exploratory data analysis.

[dchudz]

+1 to "write a plot to a temporary file and try to open it in a web browser"

[vks]

Either way, I think the behavior should be documented in the tutorial. (I.e. "In order to actually see the plots, use draw().")

[dcjones]

Now calling plot from the regular REPL will actually display the plot by writing it to a temporary file and opening it.

This respects options set by set_default_plot_size and set_default_plot_format. The default plot format is html, which should open in a new browser tab. Change it to, e.g., png and the plot will open in whatever program png files are associated with, etc.

[dcjones]

P.S. I haven't tested this on windows, though it should work. Let me know if it doesn't.

[tkelman]

@dcjones doesn't look like it. Have you had a chance to address loladiro's comment here? 7a65b77#commitcomment-5922916

[dcjones]

I forgot about that. It should work once again now.

[tkelman]

Thanks, but still didn't seem to work?

julia> Pkg.checkout("Gadfly")
INFO: Checking out Gadfly master...
INFO: Pulling Gadfly latest master...
INFO: No packages to install, update or remove

julia> using Gadfly
Warning: ignoring conflicting import of StatsBase.range into DataFrames

julia> plot(x=collect(1:10), y=sort(rand(10)))
Plot(...)

And nothing opens.

PNG backend works to generate a file, but is more verbose.

[dpo]

Doesn't work here either. I call set_default_plot_format(:svg). Until recently, the browser would open with the plot, but no more.

EDIT:

p = plot(...)
display(p)

works.