DatetimeIndex.std(*args, **kwargs)[source]

Return sample standard deviation over requested axis.

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

axisint optional, default None

Axis for the function to be applied on. For Series this parameter is unused and defaults to None.

ddofint, default 1

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

skipnabool, default True

Exclude NA/null values. If an entire row/column is NA, the result will be NA.