statsmodels.discrete.count_model.ZeroInflatedNegativeBinomialP.hessian

ZeroInflatedNegativeBinomialP.hessian(params)

Generic Zero Inflated model Hessian matrix of the loglikelihood

Parameters:

params : array_like

The parameters of the model

Returns:

hess : ndarray, (k_vars, k_vars)

The Hessian, second derivative of loglikelihood function, evaluated at params