statsmodels.discrete.count_model.ZeroInflatedGeneralizedPoisson.score_obs¶
method
-
ZeroInflatedGeneralizedPoisson.
score_obs
(params)¶ Generic Zero Inflated model score (gradient) vector of the log-likelihood
Parameters: params : array-like
The parameters of the model
Returns: score : ndarray, 1-D
The score vector of the model, i.e. the first derivative of the loglikelihood function, evaluated at params