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TableĀ 6 Summary statistics of PLS-DA models for qualitative analysis of biomass feedstock quality grades

From: An NIRS-based assay of chemical composition and biomass digestibility for rapid selection of Jerusalem artichoke clones

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
  1. PCs principal components, R2 the multiple coefficients of determination, Q2 the explained variation in the test set, N number of samples