Parameter | N | Full spectra | CARS-optimized spectra | RF-optimized spectra | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RMSEP | R 2 V | RPD | RER | RMSEP | R 2 V | RPD | RER | RMSEP | R 2 V | RPD | RER | ||
Soluble sugars | 13 | 2.17 | 0.91 | 3.07 | 14.18 | 2.55 | 0.85 | 2.61 | 12.07 | 1.57 | 0.94 | 4.24 | 19.60 |
Cellulose | 14 | 0.75 | 0.92 | 3.21 | 17.49 | 0.61 | 0.93 | 3.95 | 21.51 | 0.54 | 0.94 | 4.46 | 24.29 |
Hemicellulose | 14 | 0.39 | 0.95 | 4.18 | 19.12 | 0.23 | 0.98 | 7.08 | 32.42 | 0.35 | 0.95 | 4.65 | 21.31 |
Lignin | 14 | 0.58 | 0.89 | 2.98 | 12.97 | 0.66 | 0.93 | 2.61 | 11.40 | 0.61 | 0.84 | 2.83 | 12.33 |
Ash | 14 | 0.21 | 0.58 | 3.13 | 16.05 | 0.31 | 0.08 | 2.12 | 10.87 | 0.23 | 0.86 | 2.86 | 14.65 |