Fig. 7

ROC curve for the model of control and BP group, which displayed the cross-validation error as a receiver operating characteristic (ROC) curve with a 95% confidence interval. The area under the ROC (AUROC = 0.89) is given below the curve. The x-axis and y-axis represent false-positive and true-positive rates, respectively, for the tested markers. Pale orange color—BP group; Black color—Normal group. The micro average precision is the sum of all true positives divided by the sum of all true positives and false positives. The macro averaging is the arithmetic means of all recall scores for different groups involved in this study. Macro averaging gives equal weight to each category while micro averaging gives equal weight to each sample