Fig. 3From: Comprehensive evaluation of caloric restriction-induced changes in the metabolome profile of miceOPLS scores and 200 permutation tests for OPLS-DA models. A Serum, B heart, C liver, D kidney, E cortex, F hippocampus, G lung, H muscle, I white adipose. Statistical validation of the significant OPLS-DA models by permutation testing revealed no over-fitting (note that the blue regression line of the Q2 points intersect the vertical axis at values < 0)Back to article page