statsmodels.genmod.families.family.Tweedie.resid_anscombe¶
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Tweedie.
resid_anscombe
(endog, mu)[source]¶ The Anscombe residuals for the Tweedie family
Parameters: endog : array-like
Endogenous response variable
mu : array-like
Fitted mean response variable
Returns: resid_anscombe : array
The Anscombe residuals as defined below.
Notes
When \(p = 3\), then
\[resid\_anscombe_i = (\log(endog) - \log(\mu)) / \sqrt{mu}\]Otherwise,
\[c = (3 - p) / 3\]\[resid\_anscombe_i = (1 / c) * (endog ^ c - \mu ^ c) / \mu ^{p / 6}\]