To cite package ‘PRC’ in publications use:

  ter Braak C (2026). _PRC: Principal Response Curves (PRC) For
  Displaying Multivariate Main Effects And Interactions_. R package
  version 2.0.4, <https://github.com/cajoterbraak/prc>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PRC: Principal Response Curves (PRC) For Displaying Multivariate Main
Effects And Interactions},
    author = {Cajo J.F {ter Braak}},
    year = {2026},
    note = {R package version 2.0.4},
    url = {https://github.com/cajoterbraak/prc},
  }
