To cite package ‘cutoff’ in publications use:

Zhang J, Jin Z (2019). cutoff: Seek the Significant Cutoff Value. R package version 1.1, https://github.com/yikeshu0611/cutoff.

Corresponding BibTeX entry:

  @Manual{,
    title = {cutoff: Seek the Significant Cutoff Value},
    author = {Jing Zhang and Zhi Jin},
    year = {2019},
    note = {R package version 1.1},
    url = {https://github.com/yikeshu0611/cutoff},
  }