statsmodels.discrete.count_model.ZeroInflatedGeneralizedPoisson.hessian¶
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ZeroInflatedGeneralizedPoisson.
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