The tentative models with their comparable criteria values
| Model selected → | Arima (1,1,3) | Arima (3,1,1) | Arima (1,1,9) | Arima (9,1,1) | Arima (3,1,9) | Arima (9,1,3) | Arima (12,1,1) | Arima (12,1,3) | Arima (12,1,9) | Arima (12,1,12) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) |
| ↓ Criteria | ↓Expectation | ||||||||||
| Stationary R-squared | Higher value | 0.187 | 0.225 | 0.443 | 0.316 | 0.528 | 0.594 | 0.726 | 0.728 | 0.774 | 0.785 |
| R-squared | Higher value | 0.479 | 0.503 | 0.643 | 0.561 | 0.697 | 0.740 | 0.824 | 0.825 | 0.855 | 0.862 |
| RMSE | Lower value | 0.199 | 0.194 | 0.171 | 0.190 | 0.159 | 0.148 | 0.122 | 0.124 | 0.118 | 0.117 |
| MAPE | Lower value | 56.790 | 59.993 | 46.597 | 47.446 | 38.377 | 38.614 | 30.554 | 30.619 | 30.021 | 29.915 |
| MaxAPE | Lower value | 2471.260 | 2881.671 | 1709.349 | 2027.033 | 1498.643 | 1708.299 | 1524.565 | 1531.075 | 1389.177 | 1363.536 |
| MAE | Lower value | 0.139 | 0.135 | 0.126 | 0.125 | 0.107 | 0.097 | 0.066 | 0.067 | 0.068 | 0.068 |
| MaxAE | Lower value | 0.617 | 0.649 | 0.369 | 0.704 | 0.519 | 0.493 | 0.459 | 0.458 | 0.383 | 0.360 |
| Normalized- BIC | Lower value | −2.701 | −2.749 | −2.716 | −2.512 | −2.761 | −2.912 | −3.242 | −3.127 | −2.940 | −2.802 |
| Ljung-Box Statistics (Sig.) | Lower value (Sig. should be > (0.05) | 71.371 (0.000) | 57.422 (0.000) | 48.015 (0.000) | 65.728 (0.000) | 49.334 (0.000) | 57.920 (0.000) | 10.283 (0.068) | 11.947 (0.008) | − ( − ) | − ( − ) |
| Constant Estimate (Sig.) | Lower value (Sig. should be > (0.05) | −0.480 (0.515) | −0.591 (0.363) | −0.746 (0.160) | −0.696 (0.306) | −0.650 (0.292) | −0.648 (0.253) | −0.003 (0.995) | −0.003 (0.994) | −0.322 (0.416) | −0.659 (0.072) |
| Model selected → | Arima (1,1,3) | Arima (3,1,1) | Arima (1,1,9) | Arima (9,1,1) | Arima (3,1,9) | Arima (9,1,3) | Arima (12,1,1) | Arima (12,1,3) | Arima (12,1,9) | Arima (12,1,12) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) |
| ↓ Criteria | ↓Expectation | ||||||||||
| Stationary | Higher value | 0.187 | 0.225 | 0.443 | 0.316 | 0.528 | 0.594 | 0.726 | 0.728 | 0.774 | 0.785 |
| Higher value | 0.479 | 0.503 | 0.643 | 0.561 | 0.697 | 0.740 | 0.824 | 0.825 | 0.855 | 0.862 | |
| RMSE | Lower value | 0.199 | 0.194 | 0.171 | 0.190 | 0.159 | 0.148 | 0.122 | 0.124 | 0.118 | 0.117 |
| MAPE | Lower value | 56.790 | 59.993 | 46.597 | 47.446 | 38.377 | 38.614 | 30.554 | 30.619 | 30.021 | 29.915 |
| MaxAPE | Lower value | 2471.260 | 2881.671 | 1709.349 | 2027.033 | 1498.643 | 1708.299 | 1524.565 | 1531.075 | 1389.177 | 1363.536 |
| MAE | Lower value | 0.139 | 0.135 | 0.126 | 0.125 | 0.107 | 0.097 | 0.066 | 0.067 | 0.068 | 0.068 |
| MaxAE | Lower value | 0.617 | 0.649 | 0.369 | 0.704 | 0.519 | 0.493 | 0.459 | 0.458 | 0.383 | 0.360 |
| Normalized- BIC | Lower value | −2.701 | −2.749 | −2.716 | −2.512 | −2.761 | −2.912 | −3.242 | −3.127 | −2.940 | −2.802 |
| Ljung-Box Statistics | Lower value | 71.371 | 57.422 | 48.015 | 65.728 | 49.334 | 57.920 | 10.283 | 11.947 | − | − |
| Constant Estimate | Lower value | −0.480 | −0.591 | −0.746 | −0.696 | −0.650 | −0.648 | −0.003 | −0.003 | −0.322 | −0.659 |