Table 1.
Prediction results of PLS-DA models of BFL built by different variable selection methods.
| Primary ID | 886 spectral variables | 40 spectral variables by CARS | 95 spectral variables by MC-UVE | 90 spectral variables by SPA | 129 spectral variables by LPG | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AC | CC | Ypre | Ydev | AC | CC | Ypre | Ydev | AC | CC | Ypre | Ydev | AC | CC | Ypre | Ydev | AC | CC | Ypre | Ydev | |
| BFL-01 | 1 | 1 | 0.836 | 0.116 | 1 | 1 | 1.001 | 0.001 | 1 | 1 | 0.654 | 0.245 | 1 | 1 | 1.023 | 0.016 | 1 | 1 | 0.805 | 0.138 |
| BFL-05 | 1 | 1 | 1.629 | 0.445 | 1 | 1 | 0.774 | 0.160 | 1 | 1 | 0.644 | 0.252 | 1 | 1 | 1.23 | 0.163 | 1 | 1 | 0.548 | 0.320 |
| BFL-20 | 1 | 1 | 1.536 | 0.379 | 1 | 1 | 0.834 | 0.117 | 1 | 1 | 0.541 | 0.324 | 1 | 1 | 0.805 | 0.138 | 1 | 1 | 0.749 | 0.178 |
| BFL-34 | 1 | 1 | 1.618 | 0.437 | 1 | 1 | 0.719 | 0.199 | 1 | 1 | 0.621 | 0.268 | 1 | 1 | 1.205 | 0.145 | 1 | 1 | 0.762 | 0.168 |
| BFL-40 | 1 | 1 | 0.835 | 0.117 | 1 | 1 | 1.168 | 0.119 | 1 | 1 | 0.711 | 0.204 | 1 | 1 | 1.577 | 0.408 | 1 | 1 | 0.822 | 0.126 |
| BFL-48 | 1 | SU | 1.782 | 0.553 | 1 | 1 | 1.119 | 0.084 | 1 | 1 | 0.685 | 0.223 | 1 | 1 | 1.400 | 0.283 | 1 | 1 | 0.725 | 0.194 |
| BFL-33 | 2 | 2 | 2.004 | 0.003 | 2 | 2 | 2.084 | 0.059 | 2 | 2 | 1.756 | 0.173 | 2 | 2 | 1.849 | 0.107 | 2 | 2 | 1.758 | 0.171 |
| BFL-42 | 2 | SU | 2.635 | 0.450 | 2 | 2 | 1.554 | 0.315 | 2 | 2 | 1.539 | 0.326 | 2 | 2 | 1.87 | 0.092 | 2 | 2 | 1.682 | 0.225 |
| BFL-49 | 2 | 2 | 1.928 | 0.051 | 2 | 2 | 1.593 | 0.288 | 2 | 2 | 2.192 | 0.136 | 2 | 2 | 1.963 | 0.026 | 2 | 2 | 1.920 | 0.057 |
| BFL-54 | 2 | 2 | 1.845 | 0.110 | 2 | 2 | 1.967 | 0.023 | 2 | 2 | 1.963 | 0.026 | 2 | 2 | 1.72 | 0.198 | 2 | 2 | 1.821 | 0.126 |
| BFL-55 | 2 | 2 | 1.751 | 0.176 | 2 | 2 | 1.942 | 0.041 | 2 | 2 | 1.882 | 0.083 | 2 | 2 | 2.034 | 0.024 | 2 | 2 | 1.716 | 0.201 |
| BFL-12 | 3 | 3 | 2.802 | 0.140 | 3 | 3 | 3.019 | 0.013 | 3 | 3 | 2.562 | 0.310 | 3 | 3 | 2.88 | 0.085 | 3 | 3 | 2.575 | 0.300 |
| BFL-15 | 4 | 4 | 3.844 | 0.110 | 4 | 4 | 4.593 | 0.419 | 4 | 4 | 3.744 | 0.181 | 4 | 4 | 3.876 | 0.088 | 4 | 4 | 3.582 | 0.296 |
| BFL-37 | 4 | 4 | 3.948 | 0.037 | 4 | 4 | 3.712 | 0.204 | 4 | 4 | 3.720 | 0.198 | 4 | 4 | 3.9 | 0.071 | 4 | 4 | 3.807 | 0.137 |
| BFL-47 | 4 | 4 | 3.893 | 0.076 | 4 | 4 | 3.873 | 0.090 | 4 | 4 | 3.861 | 0.098 | 4 | 4 | 3.657 | 0.243 | 4 | 4 | 3.817 | 0.129 |
| BFL-04 | 5 | SU | 5.653 | 0.462 | 5 | 5 | 4.901 | 0.070 | 5 | 5 | 4.782 | 0.154 | 5 | 5 | 4.565 | 0.308 | 5 | 5 | 4.576 | 0.300 |
| BFL-13 | 5 | 5 | 4.813 | 0.132 | 5 | 5 | 5.126 | 0.089 | 5 | 5 | 5.117 | 0.083 | 5 | 5 | 4.685 | 0.223 | 5 | 5 | 4.790 | 0.149 |
| BFL-16 | 5 | 5 | 4.904 | 0.068 | 5 | 5 | 5.047 | 0.033 | 5 | 5 | 4.751 | 0.176 | 5 | 5 | 4.818 | 0.129 | 5 | 5 | 5.013 | 0.009 |
| BFL-25 | 5 | 5 | 4.965 | 0.025 | 5 | 5 | 4.829 | 0.121 | 5 | 5 | 4.995 | 0.004 | 5 | 5 | 4.762 | 0.168 | 5 | 5 | 4.829 | 0.121 |
| Accuracy (%) | 84.21 | 100 | 100 | 100 | 100 | |||||||||||||||
| R 2 | 0.940 | 0.977 | 0.966 | 0.972 | 0.970 | |||||||||||||||
| RMSECV | 0.290 | 0.181 | 0.219 | 0.197 | 0.208 | |||||||||||||||
| RMSEP | 0.382 | 0.239 | 0.289 | 0.260 | 0.274 | |||||||||||||||
Note: AC (Actual class), CC (Calculated class), Ypre (Predicted value), Ydev (Deviation), SU (Suspicious).