Table 6 Comparative modelling... | Emerald Publishing

Table 6

Comparative modelling performance

Model		MAE ($/ton)	MSE ($/ton)	RMSE ($/ton)	MAPE (%)
ARIMAX (1,1,1)	Training	14.37	1647.43	40.59	3.55
	Validation	19.35	502.87	22.42	6.30
	Test	51.41	3884.24	62.32	11.44
Holdout (24 features)	Training	55.65	4185.43	64.69	16.75
	Validation	28.62	1102.25	33.20	9.35
	Test	43.43	2502.82	50.03	8.83
Holdout (6 features)	Training	15.19	379.63	19.52	3.76
	Validation	6.39	65.90	8.11	2.04
	Test	29.36	1296.17	36.01	6.22
Holdout (3 features)	Training	8.48	129.55	11.38	2.64
	Validation	5.91	61.62	7.85	1.53
	Test	24.62	939.42	30.65	5.17

Model		MAE ($/ton)	MSE ($/ton)	RMSE ($/ton)	MAPE (%)
ARIMAX (1,1,1)	Training	14.37	1647.43	40.59	3.55
	Validation	19.35	502.87	22.42	6.30
	Test	51.41	3884.24	62.32	11.44
Holdout (24 features)	Training	55.65	4185.43	64.69	16.75
	Validation	28.62	1102.25	33.20	9.35
	Test	43.43	2502.82	50.03	8.83
Holdout (6 features)	Training	15.19	379.63	19.52	3.76
	Validation	6.39	65.90	8.11	2.04
	Test	29.36	1296.17	36.01	6.22
Holdout (3 features)	Training	8.48	129.55	11.38	2.64
	Validation	5.91	61.62	7.85	1.53
	Test	24.62	939.42	30.65	5.17

Source(s): Authors