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pandas.core.window.Expanding.var
Expanding.var(ddof=1, **kwargs)
-
expanding variance
Parameters: ddof : int, default 1
Delta Degrees of Freedom. The divisor used in calculations is
N - ddof
, whereN
represents the number of elements.Returns: same type as input
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Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.18.1/generated/pandas.core.window.Expanding.var.html