To cite package ‘crossfit’ in publications use:

  Peyrot E (2026). _crossfit: A Graph-Based Cross-Fitting Engine in R_.
  R package version 0.1.3,
  <https://github.com/etiennepeyrot/crossfit-r>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {crossfit: A Graph-Based Cross-Fitting Engine in R},
    author = {Etienne Peyrot},
    year = {2026},
    note = {R package version 0.1.3},
    url = {https://github.com/etiennepeyrot/crossfit-r},
  }