statsmodels.discrete.discrete_model.GeneralizedPoisson.hessian¶

GeneralizedPoisson.hessian(params)[source]¶

Generalized Poisson 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