To cite package ‘stepcount’ in publications use:

  Muschelli J (2024). _stepcount: Estimate Step Counts from
  'Accelerometry' Data_. R package version 0.3.2,
  <https://CRAN.R-project.org/package=stepcount>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {stepcount: Estimate Step Counts from 'Accelerometry' Data},
    author = {John Muschelli},
    year = {2024},
    note = {R package version 0.3.2},
    url = {https://CRAN.R-project.org/package=stepcount},
  }