To cite package ‘butterflyOptions’ in publications use:

Kumar M (2022). butterflyOptions: Trading Butterfly Options Strategies. R package version 1.0.1, https://CRAN.R-project.org/package=butterflyOptions.

Corresponding BibTeX entry:

  @Manual{,
    title = {butterflyOptions: Trading Butterfly Options Strategies},
    author = {MaheshP Kumar},
    year = {2022},
    note = {R package version 1.0.1},
    url = {https://CRAN.R-project.org/package=butterflyOptions},
  }