To cite package ‘gghotelling’ in publications use:

  Weiner J (2026). _gghotelling: Hotelling's T² Ellipses and Outlier
  Detection for 'ggplot2'_. R package version 0.2.1,
  <https://github.com/january3/gghotelling>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gghotelling: Hotelling's T² Ellipses and Outlier Detection for 'ggplot2'},
    author = {January Weiner},
    year = {2026},
    note = {R package version 0.2.1},
    url = {https://github.com/january3/gghotelling},
  }