pydata/pandas — pull request #8877 by sinhrks (2014-11-22 04:28:48+00:00)
Title: DOC: Suppress warnings in visualization.rst

Closes #8234. Sorry to take a long.

I understand there are 2 warnings:

1. Warning in /Users/sin/Documents/Git/pandas/doc/source/visualization.rst at block ending on line 1275
This is raised from `mpl` as plotting empty axes for demonstration purpose. Thus simply suppressed.

2. Warning in /Users/sin/Documents/Git/pandas/doc/source/visualization.rst at block ending on line 1312
This is a warning displayed when passing multiple axes. Added explanations.