statsmodels.discrete.count_model.ZeroInflatedPoisson.hessian#
- ZeroInflatedPoisson.hessian(params)#
Generic Zero-Inflated model Hessian matrix of the log-likelihood.
- Parameters:
- paramsarray_like
The parameters of the model
- Returns:
- hess
ndarray, (k_vars,k_vars) The Hessian, second derivative of the log-likelihood function, evaluated at params
- hess