DOC: update the pandas.core.window.x.mean docstring#20265

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jorisvandenbossche merged 3 commits intopandas-dev:masterfrom

johnnymetz:docstring-window-mean

Mar 17, 2018

Commits on Mar 10, 2018

DOC: Improve the docstring of window mean functions.
johnnymetz
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Commits on Mar 12, 2018

DOC: Add line between examples for pandas.core.window.x.mean.
johnnymetz
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DOC: Remove whitespace in blank line for pandas.core.window.x.mean.
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