To cite package ‘nightingale’ in publications use:

  Simson J, Jammers F (2025). _nightingale: Visualize Data from
  Florence Nightingale's Mortality Analysis_. R package version 0.3.0,
  <https://github.com/jansim/nightingale>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {nightingale: Visualize Data from Florence Nightingale's Mortality Analysis},
    author = {Jan Simson and Fritjof Jammers},
    year = {2025},
    note = {R package version 0.3.0},
    url = {https://github.com/jansim/nightingale},
  }