To cite package ‘rfriend’ in publications use:

van Delden S (2026). rfriend: Provides Batch Functions and Visualisation for Basic Statistical Procedures. R package version 3.1.0, https://github.com/delde001/rfriend.

Corresponding BibTeX entry:

  @Manual{,
    title = {rfriend: Provides Batch Functions and Visualisation for
      Basic Statistical Procedures},
    author = {Sander H. {van Delden}},
    year = {2026},
    note = {R package version 3.1.0},
    url = {https://github.com/delde001/rfriend},
  }