Fig. 3
From: Metabolomic diferences between COVID-19 and H1N1 influenza induced ARDS
A Predicted class probabilities plot (average of the cross-validation) for each sample using the best classifier (based on R2 = 0.94 and Q2 = 0.89 PLS robustness parameters) of the PLS model (3 PLS components). As a balanced subsampling approach is used for model training, the classification boundary is always at the center (x = 0.5, the dotted line). B Area under de curve receiver operating characteristic (AUCROC) of PLS-DA. COVID, COVID-19; H1N1, influenza A pneumonia