To cite package ‘gcookbook’ in publications use:

Chang W (2025). gcookbook: Data for "R Graphics Cookbook". R package version 2.0.1, https://github.com/wch/gcookbook.

Corresponding BibTeX entry:

  @Manual{,
    title = {gcookbook: Data for "R Graphics Cookbook"},
    author = {Winston Chang},
    year = {2025},
    note = {R package version 2.0.1},
    url = {https://github.com/wch/gcookbook},
  }