年、月 | 期数 | CPI | ARMA | 二次曲线 | ||
拟合值 | 相对误差(%) | 拟合值 | 相对误差(%) | |||
2014.01 | 1 | 102.5 |
|
| 102.556 | 0.064 |
2014.02 | 2 | 102.0 |
|
| 102.416 | 0.408 |
2014.03 | 3 | 102.4 | 102.674 | 0.27 | 102.284 | 0.113 |
2014.04 | 4 | 101.8 | 101.867 | 0.07 | 102..162 | 0.356 |
2014.05 | 5 | 102.5 | 102.275 | 0.22 | 102.049 | 0.440 |
2014.06 | 6 | 102.3 | 101.775 | 0.51 | 101.946 | 0.347 |
2014.07 | 7 | 102.3 | 101.980 | 0.31 | 101.851 | 0.439 |
2014.08 | 8 | 102.0 | 101.667 | 0.33 | 101.765 | 0.231 |
2014.09 | 9 | 101.6 | 101.763 | 0.16 | 101.688 | 0.087 |
2014.10 | 10 | 101.6 | 101.564 | 0.04 | 101.621 | 0.020 |
2014.11 | 11 | 101.4 | 101.605 | 0.20 | 101.562 | 0.160 |
2014.12 | 12 | 101.5 | 101.480 | 0.02 | 101.512 | 0.012 |
2015.01 | 13 | 100.8 | 101.497 | 0.69 | 101.472 | 0.667 |
2015.02 | 14 | 101.4 | 101.422 | 0.02 | 101.441 | 0.040 |
2015.03 | 15 | 101.4 | 101.433 | 0.03 | 101.418 | 0.018 |
2015.04 | 16 | 101.3 | 101.394 | 0.09 | 101.405 | 0.104 |
2015.05 | 17 | 101.2 | 101.409 | 0.21 | 101.401 | 0.199 |
2015.06 | 18 | 101.4 | 101.400 | 0.00 | 101.406 | 0.006 |
2015.07 | 19 | 101.6 | 101.425 | 0.17 | 101.420 | 0.177 |
2015.08 | 20 | 102.0 | 101.439 | 0.55 | 101.443 | 0.546 |
2015.09 | 21 | 101.6 | 101.478 | 0.12 | 101.475 | 0.123 |
2015.10 | 22 | 101.3 | 101.514 | 0.21 | 101.516 | 0.213 |
2015.11 | 23 | 101.5 | 101.568 | 0.07 | 101.566 | 0.065 |
2015.12 | 24 | 101.6 | 101.625 | 0.02 | 101.626 | 0.025 |
误差平方和 |
|
| 1.640 |
| 1.681 |
|