fig3

Figure 3. Signature of gut bacterial OTUs associated with CDI patients and asymptomatic CDC patients. (A) Cross-validation accuracy of the microbiota classifier is shown in the ROC curve with the AUC; (B) Median relative feature weights of the selected gut bacterial OTUs show the contribution of each marker OTU to the classification. Robustness of the selected features indicates the fraction of models containing the specific feature. The normalized values of the selected features across CDI and CDC are shown in the heatmap. AUC: Area Under the Curve; CDC: C. difficile colonization; CDI: C. difficile infection; ROC: Receiver Operating Characteristic.