Series.cov()

pandas.Series.cov

Series.cov(other, min_periods=None)

Compute covariance with Series, excluding missing values

Parameters:

Parameters:	other : Series min_periods : int, optional Minimum number of observations needed to have a valid result
Returns:	covariance : float Normalized by N-1 (unbiased estimator).

other : Series

min_periods : int, optional

Minimum number of observations needed to have a valid result

Returns:

covariance : float

Normalized by N-1 (unbiased estimator).

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Licensed under the 3-clause BSD License.
http://pandas.pydata.org/pandas-docs/version/0.18.1/generated/pandas.Series.cov.html