年份 | 指标 | PC1 | PC2 | PC3 | PC4 |
2013年 | 湿度 | 0.0593 | 0.2455 | 0.2321 | −0.9393 |
绿度 | 0.8761 | −0.4711 | −0.0606 | −0.0827 | |
热度 | −0.2778 | −0.6126 | 0.7399 | 0.0052 | |
干度 | −0.3896 | −0.5852 | −0.6285 | −0.3328 | |
特征值 | 0.0644 | 0.0071 | 0.0027 | 0.0001 | |
贡献率% | 86.68% | 9.5% | 3.64% | 0.18% | |
2018年 | 湿度 | 0.0526 | 0.2268 | 0.1989 | −0.9519 |
绿度 | 0.9053 | −0.4161 | −0.0592 | −0.0615 | |
热度 | −0.2302 | −0.6089 | 0.7592 | 0.0008 | |
干度 | −0.3531 | −0.6361 | −0.6169 | −0.3000 | |
特征值 | 0.0606 | 0.0103 | 0.0030 | 0.0001 | |
贡献率% | 81.94% | 13.38% | 4.07% | 0.11% |