statsmodels.genmod.generalized_linear_model.GLM.estimate_scale

GLM.estimate_scale(mu)[source]

Estimates the dispersion/scale.

Type of scale can be chose in the fit method.

Parameters:mu (array) – mu is the mean response estimate
Returns:
Return type:Estimate of scale

Notes

The default scale for Binomial, Poisson and Negative Binomial families is 1. The default for the other families is Pearson’s Chi-Square estimate.