Autoregressive.covariance_matrix()
statsmodels.genmod.cov_struct.Autoregressive.covariance_matrix
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Autoregressive.covariance_matrix(endog_expval, index)[source] -
Returns the working covariance or correlation matrix for a given cluster of data.
Parameters: endog_expval: array-like
The expected values of endog for the cluster for which the covariance or correlation matri
