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Table 2 OPLS models statistics

From: The 1H NMR serum metabolomics response to a two meal challenge: a cross-over dietary intervention study in healthy human volunteers

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
  1. aLatent Variables
  2. b Cumulative fraction of the sum of squares of X explained by the selected latent variables
  3. c Cumulative fraction of the sum of squares of Y explained by the selected latent variables
  4. d Cumulative fraction of the sum of squares of Y predicted by the selected latent variables, estimated by cross validation
  5. e ANalysis Of VAriance testing of Cross-Validated predictive residuals
  6. f The intercept between real and random models, degree of overfit
  7. g Orthogonal Projections to Latent Structures with Discriminant Analysis
  8. h Orthogonal Projections to Latent Structures with Effect Projections
  9. Not applicable