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The selected sensitive wavelengths by weighted regression coefficients (Bw), SPA and GAPLS.
| Methods | Number | Sensitive Wavelengths (nm) |
|---|---|---|
| Bw | 18 | 501, 508, 542, 707, 720, 739, 761, 769, 789, 809, 852, 859, 865, 871, 880, 892, 897, 899 |
| SPA | 15 | 892, 543, 897, 618, 782, 554, 701, 635, 746, 505, 852, 712, 677, 512, 684 |
| GAPLS | 16 | 788, 789, 809, 636, 638, 778, 807, 639, 635, 738, 791, 810, 866, 679, 741, 777 |
