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DataFrame.cov()

DataFrame.cov(min_periods=None) [source]

Compute pairwise covariance of columns, excluding NA/null values

Parameters:

min_periods : int, optional

Minimum number of observations required per pair of columns to have a valid result.

Returns:

y : DataFrame

Notes

y contains the covariance matrix of the DataFrame?s time series. The covariance is normalized by N-1 (unbiased estimator).

Links:

http://pandas.pydata.org/pandas-docs/version/0.19.2/generated/pandas.DataFrame.cov.html

doc_Pandas

2017-01-12 04:45:41

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