模型 | 模型1 (OLS) | 模型2 (逐步回归) | 模型3 (主成分) | 模型4 (WLS) |
变量 | p值/值 | p值/值 | p值/值 | p值/值 |
C | 0.2981 | 0 | 0.0645 | 0.2765 |
Lnlabor | 0.4853 | NALL | NALL | 0.6191 |
Lnarea/F1 | 0.00 | 0.000 | 0.000 | 0.00 |
Lnfertilizer | 0.301 | NALL | NALL | 0.2851 |
Lnirrigate/F2 | 0.0636 | 0.002 | 0.000 | 0.0556 |
Lndisaster | 0.062 | NALL | NALL | 0.063 |
| 0.9889 | 0.9869 | 0.963 | 0.9905 |
F统计量 | 445.5813 | 1056.842 | 361.5 | 519.3114 |
AIC | −2.4334 | −2.463 | −1.415 | −2.4176 |
BP检验F-p值 | 0.0415 | 0.1013 | 0.774 | 0.0563 |