To cite package ‘ptools’ in publications use:

Wheeler A (2023). ptools: Tools for Poisson Data. R package version 2.0.0, https://github.com/apwheele/ptools.

Corresponding BibTeX entry:

  @Manual{,
    title = {ptools: Tools for Poisson Data},
    author = {Andrew Wheeler},
    year = {2023},
    note = {R package version 2.0.0},
    url = {https://github.com/apwheele/ptools},
  }