Table 1.

PCA-LDA fitting accuracy for training and cross-validation (CV) varying with the sample selection method (RS: random selection; KS: Kennard-Stone; MLM: Morais-Lima-Martin) applied in datasets 1–6

Dataset	Sample selection method	Training accuracy (%)	CV accuracy (%)
1	RS	84	83
	KS	80	80
	MLM	83	82
2	RS	85	83
	KS	81	80
	MLM	82	77
3	RS	86	84
	KS	83	82
	MLM	84	80
4	RS	92	91
	KS	90	90
	MLM	93	90
5	RS	93	93
	KS	89	88
	MLM	91	88
6	RS	74	72
	KS	75	72
	MLM	76	75