wmwAUC: Test of No Group Discrimination Using the WMW Statistic

Implements a wmwAUC test of H0: AUC = 1/2 for continuous, discrete, or mixed random variables, based on the Wilcoxon-Mann-Whitney (WMW) statistic. The classic WMW test is calibrated under H0: {(F, G): F = G} which does not match the set {(F, G): AUC = 1/2}, implied by the test statistic, and consequently leads to erroneous inferences. wmwAUC is calibrated under the correct null and implements two finite-sample corrected p-value methods: an Exact Unbiased (EU) method and a Bias-Corrected (BC) method, both valid for any tie pattern. Methods are described in M. Grendar (2025) "Wilcoxon-Mann-Whitney Test of No Group Discrimination" <doi:10.48550/arXiv.2511.20308>.

Version:	1.0.0
Depends:	R (≥ 4.0.0)
Suggests:	testthat (≥ 3.0.0), ggsci, gemR, knitr, rmarkdown, ggbeeswarm, ggplot2, rlang, rankFD, patchwork
Published:	2026-07-31
DOI:	10.32614/CRAN.package.wmwAUC
Author:	Marian Grendar [aut, cre]
Maintainer:	Marian Grendar <marian.grendar at gmail.com>
BugReports:	https://github.com/grendar/wmwAUC/issues
License:	MIT + file LICENSE
URL:	https://github.com/grendar/wmwAUC
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	wmwAUC results

Documentation:

Reference manual:

wmwAUC.html , wmwAUC.pdf

Downloads:

Package source:	wmwAUC_1.0.0.tar.gz
Windows binaries:	r-devel: wmwAUC_1.0.0.zip, r-release: wmwAUC_1.0.0.zip, r-oldrel: wmwAUC_1.0.0.zip
macOS binaries:	r-release (arm64): wmwAUC_1.0.0.tgz, r-oldrel (arm64): wmwAUC_1.0.0.tgz, r-release (x86_64): wmwAUC_1.0.0.tgz, r-oldrel (x86_64): wmwAUC_1.0.0.tgz
Old sources:	wmwAUC archive

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