Table 4.
Confusion matrix of SIMCA based on each species PCA models using raw spectra

Actual species Larch Red pine Korean pine Cedar Cypress Precision (%)
Predicted species
Larch 106 0 1 0 0 99.07
Red pine 0 30 6 0 2 78.95
Korean pine 1 3 32 0 1 86.49
Cedar 1 1 0 115 2 96.64
Cypress 2 1 2 5 72 87.80
Unclassified 52 48 36 60 29 -
Multi-classified 38 117 123 20 94 -
Total (ea) 200 200 200 200 200 -
Recall (%) 53.00 15.00 16.00 57.50 36.00 -
Accuracy (%) 35.50