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Table 3 Selection of the multivariate ARIMAX model

From: Forecasting incidence of hand, foot and mouth disease using BP neural networks in Jiangsu province, China

Model

AIC

BIC

Ljung-Box test

Qa

p

ARIMA+×5

1134.05

1144.43

10.679

0.4005

ARIMA+×6

1134.08

1144.47

10.274

0.4347

ARIMA+×7

1132.37

1142.76

10.982

0.3759

ARIMA+×8

1134.07

1144.45

10.272

0.4348

ARIMA+×5 + × 6

1135.97

1148.43

10.903

0.2985

ARIMA+×5 + × 7

1134.01

1146.47

10.406

0.3357

ARIMA+×5 + × 8

1135.97

1148.43

10.85

0.3023

ARIMA+×6 + ×7

1134.21

1146.68

11.149

0.2811

ARIMA+×6 + ×8

1136.06

1148.52

10.28

0.3456

ARIMA+×7 + ×8

1134.00

1146.46

11.144

0.2815

ARIMA+×5 + ×6 + ×7

1135.93

1150.48

10.502

0.2468

ARIMA+×5 + ×7 + ×8

1135.62

1150.16

10.325

0.2587

ARIMA+×5 + ×6 + ×8

1137.94

1152.49

10.926

0.2201

ARIMA+×6 + ×7 + ×8

1135.99

1150.53

11.157

0.2066

ARIMA+×5 + ×6 + ×7 + ×8

1137.61

1154.23

10.294

0.1861

  1. aQ denotes the statistics of Ljung-Box test