To cite package ‘Transition’ in publications use:

  Eisler M, Rabaza A (2026). _Transition: Characterise Transitions in
  Test Result Status in Longitudinal Studies_. R package version 1.0.3,
  <https://github.com/mark-eis/transition>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Transition: Characterise Transitions in Test Result Status in Longitudinal
Studies},
    author = {Mark Eisler and Ana Rabaza},
    year = {2026},
    note = {R package version 1.0.3},
    url = {https://github.com/mark-eis/transition},
  }