Table 3.

Explained Y-variances for each spectral region and utilized cell. The type of validation (calibration or test set validation) and the number of PLS-R factors are specified. The values for the explained variances are given in %.

			PLS-R Factor
Region	Cell	Type	1	2	3	4
W1	0.1 mm	CAL	95.5	99.5	99.8	99.9
		TSV	96.4	98.1	99.7	99.7
	1 mm	CAL	96.8	99.9	99.9	100
		TSV	97.7	99.7	99.8	99.5
	2 mm	CAL	48.1	98.8	99.6	99.9
		TSV	22.7	93.8	96.6	99.0
W2	0.1 mm	CAL	99.4	99.8	99.9	100
		TSV	95.3	97.7	97.9	99.2
	1 mm	CAL	-	-	-	-
		TSV	-	-	-	-
	2 mm	CAL	-	-	-	-
		TSV	-	-	-	-
G1	0.1 mm	CAL	96.8	99.2	99.4	99.6
		TSV	79.2	71.7	83.0	80.3
	1 mm	CAL	100	100	100	100
		TSV	99.9	99.9	99.9	99.9
	2 mm	CAL	100	100	100	100
		TSV	99.9	99.9	99.9	99.9
G2	0.1 mm	CAL	99.9	100	100	100
		TSV	99.9	99.9	99.9	99.9
	1 mm	CAL	100	100	100	100
		TSV	100	99.9	100	99.9
	2 mm	CAL	99.8	99.9	99.9	99.9
		TSV	99.6	99.6	99.4	99.6

CAL—calibration; TSV—test set validation.