To cite chaidr in publications use:

Morimoto O (2026). chaidr: CHAID and Exhaustive CHAID Decision Trees. R package version 0.1.0, https://CRAN.R-project.org/package=chaidr.

For the CHAID algorithm please also cite:

Kass G (1980). “An Exploratory Technique for Investigating Large Quantities of Categorical Data.” Applied Statistics, 29(2), 119–127. doi:10.2307/2986296.

For the Exhaustive CHAID variant please also cite:

Biggs D, de Ville B, Suen E (1991). “A Method of Choosing Multiway Partitions for Classification and Decision Trees.” Journal of Applied Statistics, 18(1), 49–62. doi:10.1080/02664769100000005.

Corresponding BibTeX entries:

  @Manual{,
    title = {{chaidr}: CHAID and Exhaustive CHAID Decision Trees},
    author = {Osamu Morimoto},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=chaidr},
  }

  @Article{,
    title = {An Exploratory Technique for Investigating Large
      Quantities of Categorical Data},
    author = {Gordon V. Kass},
    journal = {Applied Statistics},
    year = {1980},
    volume = {29},
    number = {2},
    pages = {119--127},
    doi = {10.2307/2986296},
  }

  @Article{,
    title = {A Method of Choosing Multiway Partitions for
      Classification and Decision Trees},
    author = {David Biggs and Barry {de Ville} and Ed Suen},
    journal = {Journal of Applied Statistics},
    year = {1991},
    volume = {18},
    number = {1},
    pages = {49--62},
    doi = {10.1080/02664769100000005},
  }