Consider creating a Results class for intelligibility experiments

[achabotl]

It's a bit of a mess right now to require an Experiment whenever one needs to transform results. The results should be independent of the experiment. We should consider creating a class based on Dataframes.

Here are some examples of how to subclass data frames, from GeoPandas or to use composition, from UrbanSim.

[achabotl]

There's info in the official pandas docs since v0.16.

http://pandas.pydata.org/pandas-docs/stable/internals.html#subclassing-pandas-data-structures