Panel.apply fails when one of the axes is a Multi-Indexed DataFrame

[colindickson]

Wrote up an example notebook:

http://nbviewer.ipython.org/urls/gist.githubusercontent.com/colindickson/850d3b5172f0320f204a/raw/62e4dfd450964326b8e3c2635c5c3f4c098a7352/panel.ipynb

[jreback]

hmm not really tested with multi index axes for panel - so a bug

what are u trying to do by unstacking?

maybe show what u want as an end result

[colindickson]

what i was orignally trying to do, was trying to do the equivalent of reconstructing a new panel with the unstacked dataframes.

i've updated the notebook in the top post.

thanks!

[jreback]

I fixed the bug in #7474, but I don't think you should be doing an unstack in an apply. nothing wrong with your soln.

[colindickson]

applying an unstack to an axis of a panel would seem to me like a natural extension of the kinds of things i'm used to applying to dataframes. i'll have to experiment around once i get the version with the bugfix. thanks for fixing it! cheers.