To cite package ‘prepplot’ in publications use:

Groemping U (2025). prepplot: Prepare Figure Region for Base Graphics. R package version 1.0-2, https://CRAN.R-project.org/package=prepplot.

Corresponding BibTeX entry:

  @Manual{,
    title = {prepplot: Prepare Figure Region for Base Graphics},
    author = {Ulrike Groemping},
    year = {2025},
    note = {R package version 1.0-2},
    url = {https://CRAN.R-project.org/package=prepplot},
  }