To cite package ‘regtools’ in publications use:

Matloff N, Yancey R (2026). regtools: Regression and Classification Tools. R package version 1.7.5, https://github.com/matloff/regtools.

Corresponding BibTeX entry:

  @Manual{,
    title = {regtools: Regression and Classification Tools},
    author = {Norm Matloff and Robin Yancey},
    year = {2026},
    note = {R package version 1.7.5},
    url = {https://github.com/matloff/regtools},
  }