To cite package ‘hcop’ in publications use:

Turner S (2018). hcop: What the Package Does (Title Case). R package version 0.1.1, https://github.com/stephenturner/hcop.

Corresponding BibTeX entry:

  @Manual{,
    title = {hcop: What the Package Does (Title Case)},
    author = {Stephen Turner},
    year = {2018},
    note = {R package version 0.1.1},
    url = {https://github.com/stephenturner/hcop},
  }