日期	实际值	预测值( $\hat{y}$ )	误差/%
2020/7/28	13.28	14.09207	−6.11500095
2020/7/29	13.635	13.94496	−2.27325859
2020/7/30	13.455	14.44043	−7.32389200
2020/7/31	13.413	14.05194	−4.76355940
2020/8/3	13.927	13.94450	−0.12567487
2020/8/4	13.88	14.08516	−1.47810007
2020/8/5	13.84	13.51243	2.36681414
2020/8/6	14.44	13.39707	7.22253479
2020/8/7	14.35	13.34368	7.01269712
2020/8/10	14.99	13.28570	11.36956049
2020/8/11	14.47	13.28375	8.19797348
2020/8/12	14.91	13.26919	11.00473582
2020/8/13	15.45	13.21299	14.47902174
2020/8/14	16.01	13.34118	16.66970602
2020/8/17	15.84	13.19656	16.68835485
2020/8/18	15.1	13.16294	12.82823706
2020/8/19	14.66	13.24223	9.67103038
2020/8/20	14.3	13.24481	7.37892418
2020/8/21	14.008	13.23708	5.50339099
2020/8/24	14.6	13.27349	9.08568656
2020/8/25	14.45	13.29719	7.97790768
2020/8/26	14.191	13.28262	6.40112505
2020/8/27	14.64	13.36046	8.74000425
2020/8/28	15.25	13.40531	12.09629869
2020/8/31	15.25	13.37560	12.29114761
2020/9/1	14.819	13.22457	10.75938074
2020/9/2	14.04	13.17579	6.15534852
2020/9/3	13.7	13.09785	4.39523671
2020/9/4	13.8	12.98293	5.92078915
2020/9/8	13.45	12.96274	3.62276513
2020/9/9	13.6	12.95624	4.73356103
2020/9/10	13.25	13.01203	1.79600402
2020/9/11	13.86	13.08871	5.56489034
2020/9/14	13.556	13.16137	2.91108513
2020/9/15	13.423	13.08937	2.48547731
2020/9/16	13.82	13.00026	5.93155791
2020/9/17	14.15	12.96799	8.35341000
2020/9/18	14.1	13.01368	7.70438689
2020/9/21	13.505	13.01740	3.61049660
2020/9/22	13.555	13.03632	3.82647190
2020/9/23	12.91	13.00128	−0.70703165
2020/9/24	12.328	12.94991	−5.04473469
2020/9/25	12.36	12.96650	−4.90694377
2020/9/28	12.67	12.95528	−2.25162182
2020/9/29	12.89	12.92789	−0.29398175
2020/9/30	12.955	12.92832	0.20590666
2020/10/1	12.93	12.95107	−0.16292963
2020/10/2	12.97	12.97858	−0.06617826
2020/10/5	13.33	13.01796	2.34090910
2020/10/6	13.308	13.00231	2.29701921
2020/10/7	13.76	13.05121	5.15111638
2020/10/8	15.107	13.04968	13.61832406
2020/10/9	15.32	13.05934	14.75629829
2020/10/12	15.84	13.13939	17.04933509
2020/10/13	15.85	13.19401	16.75700725
2020/10/14	15.658	13.19860	15.70695820
2020/10/15	15.513	13.32459	14.10691091
2020/10/16	15.88	13.28203	16.36000485
2020/10/19	15.84	13.20718	16.62132793
2020/10/20	16.209999	13.23843	18.33171958
2020/10/21	16.35	13.24379	18.99820861