VIS: Pandas imshow-like function

[cpcloud]

matplotlib's imshow is pretty unawesome for DataFrames. For example, to label the axes one must do all sorts of tricks with the formatting API. Pandas provides great indexing/labeling capabilities. I propose a function similar to imshow that uses the information in a DataFrame to correctly label the axes. The API could be passing kind='image' to DataFrame.plot.

[cpcloud]

Hm. Maybe this wasn't as big of a deal as I thought. Gets a bit ugly for MultiIndex and float indices, but that can be dealt with easily using matplotlib formatting classes.

[kyleabeauchamp]

I think this is a useful feature request, if only to streamline the creation of nice heatmaps. It's currently not that much trouble to do manually, but it would be great if I could do this with a one-line call to DataFrame.plot().

[cpcloud]

yeah i have some code floating around for this just need to clean it up a bit...

[cpcloud]

way way stale

[naught101]

@cpcloud : still definitely useful though. Do you still have that code floating around?

[jorisvandenbossche]

@naught101 there is heatmap support for dataframes in both seaborn and plotnine