statsmodels.discrete.count_model.ZeroInflatedPoisson.hessian¶

ZeroInflatedPoisson.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