To cite package ‘qqtest’ in publications use:

Oldford W (2020). qqtest: Self Calibrating Quantile-Quantile Plots for Visual Testing. R package version 1.2.0, https://github.com/rwoldford/qqtest.

Corresponding BibTeX entry:

  @Manual{,
    title = {qqtest: Self Calibrating Quantile-Quantile Plots for
      Visual Testing},
    author = {Wayne Oldford},
    year = {2020},
    note = {R package version 1.2.0},
    url = {https://github.com/rwoldford/qqtest},
  }