Figure 3

Identification of metabolites with the highest potential as biomarkers by means of the S-plots obtained by applying OPLS-DA to NMR data (a) and MS data (b). NMR and MS data derives from the analysis of olive leaf samples. The values of p(1) and pcorr(1), relating to the predictive component P1, are displayed; red triangles correspond to x-variables having VIPpredictive value > 1.