def _get_start_params(self):
    start_params = self.model_main.fit(disp=0, method='nm').params
    start_params = np.append((np.ones(self.k_inflate) * 0.1), start_params)
    return start_params
def _get_start_params(self):
    start_params = self.model_main.fit(disp=0, method='nm').params
    start_params = np.append((np.ones(self.k_inflate) * 0.1), start_params)
    return start_params