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/pandas 0.18

pandas.core.window.Rolling.count

Rolling.count()
rolling count of number of non-NaN
observations inside provided window.
Returns: same type as input

See also

pandas.Series.rolling, pandas.DataFrame.rolling

© 2011–2012 Lambda Foundry, Inc. and PyData Development Team
© 2008–2011 AQR Capital Management, LLC
© 2008–2014 the pandas development team
Licensed under the 3-clause BSD License.
http://pandas.pydata.org/pandas-docs/version/0.18.1/generated/pandas.core.window.Rolling.count.html