statsmodels.regression.mixed_linear_model.MixedLM.get_scale¶ MixedLM.get_scale(fe_params, cov_re, vcomp)[source]¶ Returns the estimated error variance based on given estimates of the slopes and random effects covariance matrix. Parameters:¶ fe_params : array_like¶The regression slope estimates cov_re : 2d array_like¶Estimate of the random effects covariance matrix vcomp : array_like¶Estimate of the variance components Returns:¶ scale – The estimated error variance. Return type:¶ float