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Fast AUC computation inR

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

Install

The official(CRAN) versionof the package can be installed using

install.packages("lightAUC")

Alternatively, the development version of the package can beinstalled via

if (!require(remotes))install.packages("remotes")remotes::install_github("cadam00/lightAUC")

Citation

To cite the official(CRAN)version of the package, please use

Adam, C. (2025). lightAUC: Fast AUC Computation. R package version0.1.3. doi:10.32614/CRAN.package.lightAUC

Example

# Create some dataprobs<-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). Anintroduction to ROC analysis.Pattern Recognition Letters,27(8), 861–874. doi:10.1016/j.patrec.2005.10.010