周次

测量值

灰色模型预测

相对误差

改进灰色模型预测

相对误差

9

9.17

10.98

19.76%

8.98

−2.09%

10

9.8

11.14

13.72%

9.33

−4.77%

11

10.2

11.25

10.29%

9.90

−2.90%

12

11.1

11.19

0.81%

10.14

−8.65%

13

12.3

11.69

−5.00%

11.60

−5.72%

14

13.17

12.95

−1.68%

13.56

2.99%

15

15.27

14.12

−7.53%

14.34

−6.08%

16

17.23

16.27

−5.60%

17.42

1.08%

17

19.34

18.86

−2.46%

19.83

2.52%

18

20.47

21.54

5.22%

22.01

7.54%

19

20.93

23.30

11.31%

22.23

6.21%

20

21.5

23.90

11.15%

21.53

0.15%

21

21.9

23.70

8.23%

21.30

−2.72%

22

22.1

23.36

5.71%

21.56

−2.44%

23

22.2

22.95

3.38%

21.69

−2.30%

24

22.3

22.79

2.21%

22.04

−1.16%

25

22.4

22.75

1.54%

22.25

−0.66%

26

22.6

22.65

0.22%

22.31

−1.30%

27

22.7

22.70

0.01%

22.65

−0.21%