statsmodels.genmod.families.family.Gamma.resid_anscombe

Gamma.resid_anscombe(endog, mu)[source]

The Anscombe residuals for Gamma exponential family distribution

Parameters:

endog : array

Endogenous response variable

mu : array

Fitted mean response variable
Returns:

resid_anscombe : array

The Anscombe residuals for the Gamma family defined below

Notes

resid\_anscombe_i = 3 * (Y_i^{1/3} - \mu_i^{1/3}) / \mu_i^{1/3}