Station | Porte Mnteau lack test | Ljung-Box Q(LBQ) | Model | ||||
Q | χ2table | Decision | Q(r) | χ2table | Decision | ||
Malakal | 58.73 | 60.48 | residuals are independent | 59.67 | 60.48 | residuals are independent | DARMA models(p, q) |
Eldiem | 34.72 | 61.65 | 36.4 | 61.65 | |||
Khartoum | 54.25 | 58.12 | 56.14 | 58.12 | |||
Atbara | 56.38 | 59.3 | 58.26 | 59.3 | |||
Dongola | 50.25 | 54.57 | 53.35 | 54.57 | |||
Malakal | 45.64 | 55.75 | residuals are independent | 54.57 | 55.75 | residuals are independent | SARIMA models (p, d, q) × (P, D, Q)12 |
Eldiem | 51.39 | 60.48 | 52.32 | 60.48 | |||
Khartoum | 60.99 | 61.78 | 61.43 | 61.78 | |||
Atbara | 59.65 | 61.78 | 61.49 | 61.78 | |||
Dongola | 48.78 | 58.16 | 55.92 | 58.16 |