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parallel_coordinates incorrect auto legend #2237
Just tried the latest version of the parallel coordinates plot, but the default legend appears to be incorrect: instead of just choosing the four expected groups, one legend entry is included per row, many of them set to "None".
To reproduce, follow steps in the pandas guide.
Arch Linux 64-bit
pandas 0.9.1rc1 (git)
I can't reproduce your issue on my current setup:
The dev docs are fine as well so it's not an OS issue. I'll try installing mpl 1.2.0 and see what's going on. You sure you have the latest version of pandas from github master right?
Also what mpl backend are you using?
Yep -- I tried initially with 0.9.0 and got the error so I pulled the latest version from git and tried that; same error (I checked pandas.version to make sure right version was being loaded.)
For back-end I'm currently using Qt4Agg, but I tried with Gtk3Agg just now and got the same result.
Matplotlib made a lot of changes between 0.9.x, 1.1, and 1.2 so it wouldn't surprise me if that is the culprit.