pandas.core.window.Expanding.std

Calculate expanding standard deviation.

Normalized by N-1 by default. This can be changed using the ddof argument.

param ddof

int, default 1

Delta Degrees of Freedom. The divisor used in calculations is N - ddof, where N represents the number of elements. *args, **kwargs For NumPy compatibility. No additional arguments are used.

return

Series or DataFrame Returns the same object type as the caller of the expanding calculation.

Warning

This feature is currently unsupported by Intel Scalable Dataframe Compiler