Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 2 Summary of PLSR model

From: Effect of heat treatment on colour changes of black alder and beech veneers

Wood species	Objective	LV	R ²_c	R ²_v	SEC	SEV	RPD
Black alder	L ^*	5	0.94	0.79	1.30	2.02	2.34
	a ^*	5	0.90	0.68	0.30	0.43	1.92
	b ^*	2	0.22	0.22	0.88	0.85	0.98
Beech	L ^*	5	0.85	0.71	1.35	2.00	2.01
	a ^*	5	0.82	0.75	0.42	0.51	2.15
	b ^*	2	0.22	0.47	0.88	0.74	1.48

LV number of latent variables, R ²_c determinant coefficient for calibration, R ²_v determinant coefficient for test set validation, SEC standard error for calibration, SEV standard error for test set validation, RPD ratio of performance (SD/SEV)

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