To cite package ‘rms’ in publications use:

Harrell Jr F (2026). rms: Regression Modeling Strategies. R package version 8.2-1, https://CRAN.R-project.org/package=rms.

Corresponding BibTeX entry:

  @Manual{,
    title = {rms: Regression Modeling Strategies},
    author = {Frank E {Harrell Jr}},
    year = {2026},
    note = {R package version 8.2-1},
    url = {https://CRAN.R-project.org/package=rms},
  }