To cite package ‘smartid’ in publications use:

  Chen J (2024). _smartid: Scoring and Marker Selection Method Based on
  Modified TF-IDF_. R package version 1.1.2,
  <https://bioconductor.org/packages/smartid>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {smartid: Scoring and Marker Selection Method Based on Modified TF-IDF},
    author = {Jinjin Chen},
    year = {2024},
    note = {R package version 1.1.2},
    url = {https://bioconductor.org/packages/smartid},
  }