To cite package ‘ggfun’ in publications use:

  Yu G, Xu S (2024). _ggfun: Miscellaneous Functions for 'ggplot2'_. R
  package version 0.1.7, <https://CRAN.R-project.org/package=ggfun>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ggfun: Miscellaneous Functions for 'ggplot2'},
    author = {Guangchuang Yu and Shuangbin Xu},
    year = {2024},
    note = {R package version 0.1.7},
    url = {https://CRAN.R-project.org/package=ggfun},
  }