To cite package ‘activate’ in publications use:

Sumner M, Pedersen T (2017). activate: Activate to Determine the Context of Subsequent Manipulations. R package version 0.0.0.9000, https://github.com/hypertidy/activate.

Corresponding BibTeX entry:

  @Manual{,
    title = {activate: Activate to Determine the Context of Subsequent
      Manipulations},
    author = {Michael D. Sumner and Thomas Lin Pedersen},
    year = {2017},
    note = {R package version 0.0.0.9000},
    url = {https://github.com/hypertidy/activate},
  }