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: 0.8-33
Depends: R (≥ 3.0.0), stats, graphics, gnm (≥ 1.0-0), colorspace
Imports: grDevices, utils
Published: 2015-11-12
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
In views: Psychometrics
CRAN checks: prefmod results


Reference manual: prefmod.pdf
Package source: prefmod_0.8-33.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X El Capitan binaries: r-release: prefmod_0.8-33.tgz
OS X Mavericks binaries: r-oldrel: prefmod_0.8-33.tgz
Old sources: prefmod archive

Reverse dependencies:

Reverse suggests: BradleyTerry2, ordBTL


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