Precrec: fast and accurate precision–recall and ROC curve calculations in R

SUMMARY: The precision–recall plot is more informative than the ROC plot when evaluating classifiers on imbalanced datasets, but fast and accurate curve calculation tools for precision–recall plots are currently not available. We have developed Precrec, an R library that aims to overcome this limitation of the plot. Our tool provides fast and accurate precision–recall calculations together with multiple functionalities that work efficiently under different conditions. AVAILABILITY AND IMPLEMENTATION: Precrec is licensed under GPL-3 and freely available from CRAN (https://cran.r-project.org/package=precrec). It is implemented in R with C ++. SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.