Table 5 Compare errors GM (1,1) RGM...

Table 5

Compare errors

	GM (1,1)	RGM (1,1)	Unbiased GM (1,1)	Modified unbiased GM(1,1)	DGM(1,1)	Grey Verhulst
MAE	466	7078	1089	1019	2695	870
RMSE	588	7394	1515	1423	3387	1063
MAPE	26	67	24	23	106	30

	GM (1,1)	RGM (1,1)	Unbiased GM (1,1)	Modified unbiased GM(1,1)	DGM(1,1)	Grey Verhulst
MAE	466	7078	1089	1019	2695	870
RMSE	588	7394	1515	1423	3387	1063
MAPE	26	67	24	23	106	30

Source(s): Authors’ own work

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