To cite package ‘Gifi’ in publications use:

Mair P, De Leeuw J (2025). Gifi: Multivariate Analysis with Optimal Scaling. R package version 1.0-0, https://r-forge.r-project.org/projects/psychor.

Corresponding BibTeX entry:

  @Manual{,
    title = {Gifi: Multivariate Analysis with Optimal Scaling},
    author = {Patrick Mair and Jan {De Leeuw}},
    year = {2025},
    note = {R package version 1.0-0},
    url = {https://r-forge.r-project.org/projects/psychor},
  }