prefmod: Utilities to Fit Paired Comparison Models for Preferences

Generates design matrix for analysing real paired comparisons and derived paired comparison data (Likert type items/ratings or rankings) using a loglinear approach. Fits loglinear Bradley-Terry model (LLBT) exploiting an eliminate feature. Computes pattern models for paired comparisons, rankings, and ratings. Some treatment of missing values (MCAR and MNAR). Fits latent class (mixture) models for paired comparison, rating and ranking patterns using a non-parametric ML approach.

Version: 0.8-36
Depends: R (≥ 3.0.0), stats, graphics, gnm (≥ 1.0-0), colorspace
Imports: grDevices, utils, methods
Published: 2023-09-30
DOI: 10.32614/CRAN.package.prefmod
Author: Reinhold Hatzinger [aut], Marco Johannes Maier [cre]
Maintainer: Marco Johannes Maier <marco_maier at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: yes
Citation: prefmod citation info
Materials: NEWS
In views: MissingData, Psychometrics
CRAN checks: prefmod results


Reference manual: prefmod.pdf


Package source: prefmod_0.8-36.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): prefmod_0.8-36.tgz, r-oldrel (arm64): prefmod_0.8-36.tgz, r-release (x86_64): prefmod_0.8-36.tgz, r-oldrel (x86_64): prefmod_0.8-36.tgz
Old sources: prefmod archive

Reverse dependencies:

Reverse imports: PLMIX
Reverse suggests: BradleyTerry2, PlackettLuce, smacof


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