statsmodels.discrete.count_model.ZeroInflatedGeneralizedPoisson.score_obs

method

ZeroInflatedGeneralizedPoisson.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 loglikelihood function, evaluated at params