To cite package ‘fjoin’ in publications use:

  Robertson T (2026). _fjoin: Data Frame Joins Leveraging
  'data.table'_. R package version 0.1.1.9000,
  <https://github.com/trobx/fjoin>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {fjoin: Data Frame Joins Leveraging 'data.table'},
    author = {Toby Robertson},
    year = {2026},
    note = {R package version 0.1.1.9000},
    url = {https://github.com/trobx/fjoin},
  }