Description
Fast AUC Computation.
Description
Fast calculation of Area Under Curve (AUC) metric of a Receiver Operating Characteristic (ROC) curve, using the algorithm of Fawcett (2006) <doi:10.1016/j.patrec.2005.10.010>. Therefore it is appropriate for large-scale AUC metric calculations.
README.md
Fast AUC computation in R
Fast and lightweight computation of AUC metric for the binary case (1 positive and 0 negative) is offered by lightAU/b package. The algorithm used is a fast implementation from algorithm of Fawcett (2006).
Install
The official (CRAN) version of the package can be installed using
install.packages("lightAUC")
Alternatively, the development version of the package can be installed 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 version 0.1.3. doi:10.32614/CRAN.package.lightAUC
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