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# CITATION.cff file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "Rtractor" in publications use:'
type: software
license: GPL-2.0-or-later
title: 'Rtractor: Complexity and Nonlinear Time Series Analysis for Physiological
  Signals'
version: 0.1.0
abstract: 'A staging- and signal-agnostic toolkit of complex systems measures for
  physiological time series: entropy (sample, permutation, approximate), fractal and
  multifractal analysis (Higuchi dimension, DFA, MFDFA), Lyapunov exponents, multiscale
  entropy, and recurrence quantification analysis. Core algorithms wrap established
  C/C++/Fortran reference implementations rather than reimplementing them in pure
  R, to preserve numerical parity with the original methods literature. Some wrapped
  reference implementations are GPL-licensed (see inst/COPYRIGHTS), which is why the
  package as a whole is licensed GPL (>= 2) rather than MIT. Designed to sit underneath
  other Circadia Lab and CoDe-Neuro Lab packages (mrpheus, hypnoR, zeitR, dynR) as
  a shared complexity-metrics layer, while remaining fully usable standalone on any
  numeric time series.'
authors:
- family-names: França
  given-names: Lucas
  email: lucas.franca@northumbria.ac.uk
  orcid: https://orcid.org/0000-0003-0853-1319
- family-names: Leocadio-Miguel
  given-names: Mario
  email: mario.miguel@northumbria.ac.uk
  orcid: https://orcid.org/0000-0002-7248-3529
repository: https://circadia-bio.r-universe.dev
repository-code: https://github.com/circadia-bio/Rtractor
commit: 5243c7c85746652c0965aa94ea75f762eeccdda3
url: https://rtractor.circadia-lab.uk
date-released: '2026-07-12'
contact:
- family-names: França
  given-names: Lucas
  email: lucas.franca@northumbria.ac.uk
  orcid: https://orcid.org/0000-0003-0853-1319