Table 6 Summary statistics of PLS-DA models for qualitative analysis of biomass feedstock quality grades
Parameter | PCs | R 2 | Q 2 | Calibration | Validation | ||
|---|---|---|---|---|---|---|---|
N | Correct (%) | N | Correct (%) | ||||
Full spectra | 4 | 0.76 | 0.52 | 45 | 97.8 | 14 | 86.7 |
CARS-optimized spectra | 7 | 0.96 | 0.83 | 45 | 95.6 | 14 | 88.9 |
RF-optimized spectra | 3 | 0.91 | 0.80 | 45 | 97.8 | 14 | 91.1 |