Figure 4.
AUC of the first principle component and discriminant metabolites (2017 data set). (A) AUC of the first principle component: 0.953. (B) AUCs of the discriminant metabolites (citrulline, 0.849; valine, 0.810; arginine, 0.747; methionine, 0.745; glycine, 0.723; C16-carnitine, 0.646). AUC, area under the curve.