时间 | 真实值 | GM预测值 | 相对误差 | 真实值 | 改进GM预测值 | 相对误差 |
2017.3 | 10.437 | 10.437 | 0.00% | 10.437 | 10.629 | −1.84% |
2017.4 | 11.67 | 11.797 | −1.09% | 11.67 | 11.454 | 1.85% |
2017.5 | 12.311 | 12.046 | 2.15% | 12.311 | 12.020 | 2.36% |
2017.6 | 12.855 | 12.301 | 4.31% | 12.855 | 12.407 | 3.49% |
2017.7 | 13.067 | 12.561 | 3.87% | 13.067 | 12.681 | 2.95% |
2017.8 | 13.192 | 12.827 | 2.77% | 13.192 | 12.898 | 2.23% |
2017.9 | 12.824 | 13.098 | −2.13% | 12.824 | 13.102 | −2.17% |
2017.1 | 12.693 | 13.375 | −5.37% | 12.693 | 13.323 | −4.96% |
2017.11 | 12.885 | 13.657 | −5.99% | 12.885 | 13.580 | −5.39% |
2017.12 | 13.357 | 13.946 | −4.41% | 13.357 | 13.879 | −3.91% |
2018.1 | 13.856 | 14.241 | −2.78% | 13.856 | 14.217 | −2.60% |
2018.2 | 14.42 | 14.542 | −0.85% | 14.42 | 14.575 | −1.07% |
2018.3 | 14.981 | 14.849 | 0.88% | 14.981 | 14.923 | 0.39% |
2018.4 | 15.59 | 15.163 | 2.74% | 15.59 | 15.221 | 2.36% |
2018.5 | 16.049 | 15.484 | 3.52% | 16.049 | 15.415 | 3.95% |
皮尔逊系数 | 0.94968 | 0.956995 |