To cite package ‘fcmfd’ in publications use:

  Ortigas J (2026). _fcmfd: Fuzzy C-Means for Fuzzy Data_. R package
  version 0.1.1, <https://CRAN.R-project.org/package=fcmfd>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {fcmfd: Fuzzy C-Means for Fuzzy Data},
    author = {José Ortigas},
    year = {2026},
    note = {R package version 0.1.1},
    url = {https://CRAN.R-project.org/package=fcmfd},
  }