To cite package ‘Rtractor’ in publications use:

  França L, Leocadio-Miguel M (2026). _Rtractor: Complexity and
  Nonlinear Time Series Analysis for Physiological Signals_. R package
  version 0.1.0, <https://github.com/circadia-bio/rtractor>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Rtractor: Complexity and Nonlinear Time Series Analysis for Physiological
Signals},
    author = {Lucas França and Mario Leocadio-Miguel},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/circadia-bio/rtractor},
  }