Expanding.std()

pandas.core.window.Expanding.std

Expanding.std(ddof=1, **kwargs)

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