Figure 2
From: Polychotomization of continuous variables in regression models based on the overall C index
The ROC curve and ROC straight line graph for the sample distributions in Figure 1. The ROC curve was derived from the distributions in Figure 1 and a ROC straight line graph for the cutoff point z 0, which gives the maximum C, was also plotted. Filled part A shows the area under the ROC straight line graph.