statsmodels.genmod.families.family.Family.starting_mu¶
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Family.
starting_mu
(y)[source]¶ Starting value for mu in the IRLS algorithm.
Parameters: y : array
The untransformed response variable.
Returns: mu_0 : array
The first guess on the transformed response variable.
Notes
\mu_0 = (Y + \overline{Y})/2
Only the Binomial family takes a different initial value.