模型 | 变量 | 系数估计 | AIC |
ARIMA(1,2,0) | AR(1) | −0.4564 | 406.9 |
ARIMA(1,2,1) | AR(1) | −0.0602 | 399.5 |
MA(1) | −0.9993 | ||
ARIMA(0,2,1) | MA(1 | −10.000 | 397.5 |