Table 2.

OPLS models statistics

Model	Nr of LVa	n	R2X [cum]b	R2Y [cum]c	Q2 [cum]d	CV-ANOVAe (p-value)	Permutation test (Q2)f
OPLS-DAg	1 + 2 + 0	182	0.428	0.712	0.619	< 0.001	−0.165
OPLS-EPh	1 + 2 + 0	24	0.656	0.966	0.922	< 0.001	–

^aLatent Variables

^b Cumulative fraction of the sum of squares of X explained by the selected latent variables

^c Cumulative fraction of the sum of squares of Y explained by the selected latent variables

^d Cumulative fraction of the sum of squares of Y predicted by the selected latent variables, estimated by cross validation

^e ANalysis Of VAriance testing of Cross-Validated predictive residuals

^f The intercept between real and random models, degree of overfit

^g Orthogonal Projections to Latent Structures with Discriminant Analysis

^h Orthogonal Projections to Latent Structures with Effect Projections

^– Not applicable