statsmodels.sandbox.regression.gmm.NonlinearIVGMM.gmmobjective_cu¶ NonlinearIVGMM.gmmobjective_cu(params, weights_method='cov', wargs=())¶ objective function for continuously updating GMM minimization Parameters:¶ paramsndarrayparameter values at which objective is evaluated Returns:¶ jvalfloatvalue of objective function