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/pandas 0.23

pandas.core.window.EWM.std

EWM.std(bias=False, *args, **kwargs) [source]

exponential weighted moving stddev

Parameters:

bias : boolean, default False

Use a standard estimation bias correction

Returns:
same type as input

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Licensed under the 3-clause BSD License.
http://pandas.pydata.org/pandas-docs/version/0.23.4/generated/pandas.core.window.EWM.std.html