Table 3.

M5 model forecasting results.

		Jan	Feb	Mar	Apr	May	Jun	July	Aug	Sep	Oct	Nov	Dec	Avg
1-day a-head	MBE	-19.40	-5.06	-15.18	-46.18	26.95	-26.74	-4.72	37.32	-22.44	-3.86	23.12	-16.30	-6.04
	RMSE	35.70	30.15	113.80	126.31	86.87	51.70	118.54	89.96	58.33	41.38	57.55	31.52	70.15
	MAE	21.48	20.07	71.89	64.15	51.77	41.41	71.03	57.21	35.56	25.80	34.06	18.95	42.78
2-day a-head	MBE	-32.01	2.87	2.87	-36.00	30.34	-3.31	13.72	-46.20	-27.33	-2.60	14.58	-28.81	-9.32
	RMSE	63.73	40.79	40.79	87.07	120.19	57.23	108.49	131.56	61.64	46.96	47.87	57.36	71.97
	MAE	38.93	25.48	25.48	42.05	72.47	43.40	61.40	80.97	38.18	30.28	27.61	35.04	43.44
3-day a-head	MBE	-22.86	11.98	9.47	-34.80	-17.08	4.33	-6.97	-60.73	-17.51	-2.01	-0.61	-20.58	-13.11
	RMSE	56.88	45.99	84.77	79.45	146.73	57.95	96.47	131.58	52.29	52.81	64.45	51.19	76.71
	MAE	35.87	28.52	47.90	43.79	85.07	41.89	54.43	81.65	34.84	34.22	38.46	32.28	46.58
4-day a-head	MBE	0.02	23.91	-4.81	-30.44	4.42	10.64	-33.85	-53.85	-13.03	-6.17	1.16	5.86	-8.01
	RMSE	52.32	60.07	64.27	74.04	129.39	65.38	99.03	120.78	59.13	51.86	62.30	60.11	74.89
	MAE	31.13	34.24	38.27	42.02	75.09	46.54	59.40	75.36	40.77	33.90	38.13	36.47	45.94
5-day a-head	MBE	-27.30	25.47	-9.32	-17.94	0.68	6.56	-40.43	-47.72	-11.80	-4.16	7.39	-24.57	-11.93
	RMSE	81.23	64.91	59.92	66.19	124.02	67.36	97.46	114.28	55.67	54.79	54.34	73.10	76.11
	MAE	48.57	37.26	36.09	37.84	75.29	48.86	62.84	67.27	39.82	35.69	34.48	43.71	47.31
6-day a-head	MBE	-26.47	15.69	-20.14	-2.80	-1.50	-3.93	-46.06	-37.71	-11.27	-0.07	7.11	-23.82	-12.58
	RMSE	77.52	61.16	67.41	72.12	119.92	58.78	105.44	123.45	65.34	58.17	60.02	69.77	78.26
	MAE	46.06	37.62	43.55	46.13	70.80	44.85	68.31	71.03	45.76	37.56	37.74	41.45	49.24