Introduction to lightAUC"

In lightAUC: Fast AUC Computation

knitr::opts_chunk$set(echo = TRUE, eval=FALSE)

Fast AUC computation in R

Fast and lightweight computation of AUC metric for the binary case (1 positive and 0 negative) is offered by lightAUC package. The algorithm used is a fast implementation from algorithm of Fawcett (2006).

Example

# Create some data
probs   <- c(1, 0.4, 0.8)
actuals <- c(0, 0, 1)
lightAUC(probs, actuals)

## 0.5

For parallel calculations use:

# E.g. 2 cores (you can use cores = parallel::detectCores() for your case)
probs   <- c(1, 0.4, 0.8)
actuals <- c(0, 0, 1)
lightAUC(probs, actuals, parallel = TRUE, cores = 2)

## 0.5

References

Fawcett, T. (2006). An introduction to ROC analysis. {Pattern Recognition Letters, \bold{27}(8), 861–874. 10.1016/j.patrec.2005.10.010

lightAUC documentation built on June 8, 2025, 10:49 a.m.