To cite package ‘growthTrendR’ in publications use:

  Guo X, Girardin M, Metsaranta J, Gervais D, Campbell E (2026).
  _growthTrendR: Toolkit for Data Processing, Quality, and Statistical
  Models_. R package version 0.3.0.9000,
  <https://github.com/cfs-treering/growthtrendr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {growthTrendR: Toolkit for Data Processing, Quality, and Statistical Models},
    author = {Xiao Jing Guo and Martin Girardin and Juha Metsaranta and David Gervais and Elizabeth Campbell},
    year = {2026},
    note = {R package version 0.3.0.9000},
    url = {https://github.com/cfs-treering/growthtrendr},
  }