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statsmodels.genmod.families.family.Poisson.resid_anscombe

Poisson.resid_anscombe(Y, mu)[source]

Anscombe residuals for the Poisson exponential family distribution

Parameters:

Y : array-like

Endogenous response variable

mu : array-like

Fitted mean response variable

Returns:

resid_anscombe : array

The Anscome residuals for the Poisson family defined below

Notes

resid_anscombe = (3/2.)*(Y^{2/3.} - \mu**(2/3.))/\mu^{1/6.}

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