statsmodels.genmod.families.family.Gamma.resid_anscombe

Gamma.resid_anscombe(endog, mu)

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 = 3*(endog**(1/3.)-mu**(1/3.))/mu**(1/3.)