Time-Delayed Polynomial Grey System Model with the Fractional Order Accumulation

Table 4

Numerical results by the GM(1,1), , and .

Year	Actual value	GM(1,1)	Error (%)		Error (%)		Error (%)
1	0.155	0.155	0.00	0.155	0.00	0.155	0.00
2	1.11	2.29	106.31	1.11	0.00	1.11	0.00
3	1.92	2.54	32.29	1.86	3.12	1.87	2.60
4	2.24	2.83	26.34	2.44	8.93	2.43	8.48
5	3.03	3.15	3.96	2.97	1.98	2.99	1.32
6	3.30	3.50	6.06	3.49	5.76	3.45	4.55
7	4.16	3.89	6.49	3.99	4.09	4.10	1.44
8	4.64	4.33	6.68	4.51	2.80	4.55	1.94
9	5.18	4.81	7.14	5.04	2.70	5.11	1.35
10	5.60	5.35	4.46	5.59	0.18	5.59	0.18
11	6.25	5.95	4.80	6.15	1.60	6.21	0.64
12	6.39	6.62	3.60	6.73	5.32	6.41	0.31
13	7.35	7.36	0.14	7.35	0.00	7.34	0.14
14	8.18	8.19	0.12	7.99	2.32	8.61	0.24
15	8.57	9.10	6.18	8.66	1.05	8.61	0.47
16	9.27	10.12	9.17	9.34	0.76	9.29	0.22
MAPE ()		14.07		2.53		1.49