The Anscombe residuals for the Tweedie family
Parameters: | endog : array-like
mu : array-like
|
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Returns: | resid_anscombe : array
|
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}