statsmodels.discrete.count_model.ZeroInflatedNegativeBinomialP.score_obs#

ZeroInflatedNegativeBinomialP.score_obs(params)#

Generic Zero-Inflated model score (gradient) vector of the log-likelihood.

Parameters:
paramsarray_like

The parameters of the model

Returns:
scorendarray, 1-D

The score vector of the model, i.e. the first derivative of the log-likelihood function, evaluated at params