statsmodels.genmod.families.family.Gamma.resid_anscombe¶
-
Gamma.
resid_anscombe
(endog, mu, var_weights=1.0, scale=1.0)[source]¶ The Anscombe residuals
- Parameters
- endog
ndarray
The endogenous response variable
- mu
ndarray
The inverse of the link function at the linear predicted values.
- var_weightsarray_like
1d array of variance (analytic) weights. The default is 1.
- scale
float
,optional
An optional argument to divide the residuals by sqrt(scale). The default is 1.
- endog
- Returns
- resid_anscombe
ndarray
The Anscombe residuals for the Gamma family defined below
- resid_anscombe
Notes
\[resid\_anscombe_i = 3 * (endog_i^{1/3} - \mu_i^{1/3}) / \mu_i^{1/3} / \sqrt{scale} * \sqrt(var\_weights)\]