pandas.core.groupby.SeriesGroupBy.cov — pandas 3.0.0.dev0+2099.g3832e85779 documentation (original) (raw)

SeriesGroupBy.cov(other, min_periods=None, ddof=1)[source]#

Compute covariance with Series, excluding missing values.

The two Series objects are not required to be the same length and will be aligned internally before the covariance is calculated.

Parameters:

otherSeries

Series with which to compute the covariance.

min_periodsint, optional

Minimum number of observations needed to have a valid result.

ddofint, default 1

Delta degrees of freedom. The divisor used in calculations is N - ddof, where N represents the number of elements.

Returns:

float

Covariance between Series and other normalized by N-1 (unbiased estimator).