ROG and PR Curves

• PRROC package vignette: https://cran.r-project.org/web/packages/PRROC/vignettes/PRROC.pdf
• MachineLearningMastery guide about ROC and PR Curves in Python: https://machinelearningmastery.com/roc-curves-and-precision-recall-curves-for-classification-in-python/