statsmodels.genmod.bayes_mixed_glm.BayesMixedGLMResults.cov_params

BayesMixedGLMResults.cov_params()

Return the covariance matrix of the posterior parameter estimates.

Returns:

DataFrame, Series, or ndarray

If the model data was fit using a formula (or otherwise has named parameters), a DataFrame (2-dimensional covariance matrix) or Series (1-dimensional variances only, as produced by variational Bayes fitting) is returned, with index and, if applicable, columns given by the parameter names. Otherwise, the covariance matrix or variance vector is returned as an ndarray.