Poisson.deviance()

statsmodels.genmod.families.family.Poisson.deviance

Poisson.deviance(endog, mu, scale=1.0) [source]

Poisson deviance function

Parameters:	endog : array-like Endogenous response variable mu : array-like Fitted mean response variable scale : float, optional An optional scale argument
Returns:	deviance : float The deviance function at (endog,mu) as defined below.

Notes

If a constant term is included it is defined as