Hotelling's T² Ellipses and Outlier Detection for 'ggplot2' R package gghotelling version 0.2.1 Calculate Hotelling's T² ellipses and detect multivariate outliers both for base R plots and 'ggplot2' plots. Optionally, uses robust covariance estimation to reduce the influence of outliers on the ellipses. Also included: bagplots, kernel density plots and outlier diagnostic plots. Software Imports: ggplot2, grDevices, MASS, mrfDepth, robustbase Suggests: testthat (>= 3.0.0), ggrepel, knitr, rmarkdown, HDclassif, spelling, cowplot January Weiner <january.weiner@gmail.com> Comprehensive R Archive Network (CRAN) January Weiner [aut, cre, cph] (ORCID: <https://orcid.org/0000-0003-1438-7819>) MIT + file LICENSE (https://CRAN.R-project.org/package=gghotelling/LICENSE) 2026-08-09 application/tgz https://CRAN.R-project.org/package=gghotelling doi:10.32614/CRAN.package.gghotelling en-US