statsmodels.discrete.count_model.ZeroInflatedNegativeBinomialP.hessian

method

ZeroInflatedNegativeBinomialP.hessian(params)

Generic Zero Inflated model Hessian matrix of the loglikelihood

Parameters
paramsarray-like

The parameters of the model

Returns
hessndarray, (k_vars, k_vars)

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