pandas.core.window.Expanding.std

Expanding.std(ddof=1, *args, **kwargs) [source]

expanding standard deviation

Parameters:

Parameters:	ddof : int, default 1 Delta Degrees of Freedom. The divisor used in calculations is `N - ddof`, where `N` represents the number of elements.
Returns:	same type as input

ddof : int, default 1

Delta Degrees of Freedom. The divisor used in calculations is N - ddof, where N represents the number of elements.

Returns:

same type as input

See also

© 2008–2012, AQR Capital Management, LLC, Lambda Foundry, Inc. and PyData Development Team
Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.19.2/generated/pandas.core.window.Expanding.std.html

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