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 : float

The estimated error variance.