表相关系数波段选择结果比较
|R|阈值 | R2c | R2cv | RMSEC | RMSECV | LVs | 变量点数 |
0.1 | 0.961 | 0.948 | 2.2121 | 2.5414 | 3 | 120 |
0.2 | 0.961 | 0.952 | 2.2135 | 2.5229 | 3 | 113 |
0.3 | 0.961 | 0.953 | 2.2162 | 2.489 | 3 | 104 |
0.4 | 0.961 | 0.95 | 2.2118 | 2.5335 | 3 | 96 |
0.5 | 0.961 | 0.954 | 2.1921 | 2.469 | 3 | 86 |
0.6 | 0.963 | 0.951 | 2.1396 | 2.5285 | 3 | 77 |
0.7 | 0.944 | 0.951 | 2.1345 | 2.4731 | 3 | 73 |
0.8 | 0.964 | 0.955 | 2.1185 | 2.399 | 3 | 61 |
0.9 | 0.965 | 0.959 | 2.0946 | 2.3404 | 3 | 47 |
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图(a)相关系数与波长关系图;(b)经相关系数选出的波段 |
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图(a)VIP得分图;(b)VIP波段选择结果 |
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图(a) 蒙特卡洛模拟数为300,校正集占比为0.7模型结果;(b)经UVE方法选择出的波段( |
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(a) Vmean与波长相关关系图;(b) 选出的变量点 |