To cite package 'heplots' in publications use:

  Michael Friendly and John Fox and Georges Monette (2024). heplots:
  Visualizing Tests in Multivariate Linear Models. R package version
  1.7.1. URL https://CRAN.R-project.org/package=heplots

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {{heplots}: Visualizing Tests in Multivariate Linear Models},
    author = {Michael Friendly and John Fox and Georges Monette},
    year = {2024},
    note = {R package version 1.7.1},
    url = {https://CRAN.R-project.org/package=heplots},
  }

To refer to the theory on which this package is based, also cite:

  Friendly, M. (2007).  HE plots for Multivariate General Linear
  Models.  Journal of Computational and Graphical Statistics, 2007, 16,
  421-444

A BibTeX entry for LaTeX users is

  @Article{,
    title = {HE plots for Multivariate General Linear Models},
    author = {Michael Friendly},
    year = {2007},
    journal = {Journal of Computational and Graphical Statistics},
    volume = {16},
    number = {4},
    pages = {421--444},
  }

For use with repeated measures designs also cite:

  Michael Friendly (2010). HE Plots for Repeated Measures Designs.
  Journal of Statistical Software, 37(4), 1-40. DOI:
  10.18637/jss.v037.i04

A BibTeX entry for LaTeX users is

  @Article{,
    title = {HE Plots for Repeated Measures Designs},
    author = {Michael Friendly},
    journal = {Journal of Statistical Software},
    year = {2010},
    volume = {37},
    number = {4},
    pages = {1--40},
    doi = {10.18637/jss.v037.i04},
  }

BibTeX entries for LaTeX users: use ‘toBibtex(citation("heplots"))’