To cite package ‘productplots’ in publications use:

Wickham H, Hofmann H (2025). productplots: Product Plots for R. R package version 0.1.2, https://github.com/hadley/productplots.

Corresponding BibTeX entry:

  @Manual{,
    title = {productplots: Product Plots for R},
    author = {Hadley Wickham and Heike Hofmann},
    year = {2025},
    note = {R package version 0.1.2},
    url = {https://github.com/hadley/productplots},
  }