@cache_readonly
    def maparams(self):
        k = self.k_exog * self.k_trend
        k_ar = self.k_ar
        return self.params[k+k_ar:]
dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/tsa/arima_model.py/ARMAResults.maparams/operator `+` -> `*`