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. 2020 Jun 20;25(12):2852. doi: 10.3390/molecules25122852

Figure 1.

Figure 1

(a) Receiver operating characteristic (ROC) curve for classifying melanoma vs. pigmented lesions. The area under the ROC curve (AUROC) of 0.903 means high accuracy in distinguishing melanoma from pigmented lesions. The blue shade shows the 95% confidence interval for the ROC. (b) The histogram of AUROC from 99 randomization tests, where 7 out of 60 lesions were randomly assigned to the “melanoma” group. There is only a small chance (1%) that the observed AUROC is greater than 0.9 for the randomization tests, which suggests that the high AUROC is mostly likely due to real differences between melanoma and pigmented lesions.