To cite package ‘T1FF’ in publications use:

  Tak N (2026). _T1FF: Type-1 Fuzzy Functions for Classification,
  Regression, and Forecasting_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=T1FF>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {T1FF: Type-1 Fuzzy Functions for Classification, Regression, and
Forecasting},
    author = {Nihat Tak},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=T1FF},
  }