BradleyTerry2

1.1.3

Bradley-Terry Models

7packages depend

201Kdownloads / year

57.7%test coverage

9/13checks pass

Overview

About

Maintained by Heather TurnerFirst published 2010-02-2318 releasesCRAN page ↗GitHub ↗

Specify and fit the Bradley-Terry model, including structured versions in which the parameters are related to explanatory variables through a linear predictor and versions with contest-specific effects, such as a home advantage.

Install

R (CRAN)pak (dev)Ubuntu (r2u)openSUSE (OBS)

install.packages("BradleyTerry2", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("hturner/BradleyTerry2")

Development version from hturner/BradleyTerry2. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-bradleyterry2

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-BradleyTerry2

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

4NOTE9OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc
NOTE r-devel-linux-x86_64-fedora-gcc
NOTE r-devel-windows-x86_64

Slowest check: 3.0 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.13

57.7%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-07-16
10 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-05-10
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
WARNING2026-05-09
12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 83 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 33% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 99%
Return-value docs: 88%
References docs: 71%

Downloads

201K

CRAN downloads in the past year

Rank #1,085 · ~551/day · ~16.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

7.8K30 days

38.1K90 days

201K1 year

Compare downloads with other packages →

Also on206 r2u107 autocran2K conda_forge64 c2d4u

Repository

GitHub ↗ hturner/bradleyterry2

25Stars

0Forks

18Open issues

0Open PRs

1Releases

179Commits

3Contributors

bradley-terry-modelsstatistical-modelsrpaired-comparisons

179 commits · Last activity 2025-04-10 · +4.2% stars, 30d

Stars over time

2025-06-26 · 222026-07-07 · 25

Repository practices

Upstream repositoryBeta

5 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/hturner/bradleyterry2 on 2026-07-19.

Continuous integration (1)

GitHub Actions

CRAN release process (2)

cran-comments.mdrevdep/

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.10

Imports (5)

brglm gtools lme4 qvcalcstats

LinkingTo (0)

none

Suggests (5)

bookdown knitr litedown prefmod testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

7direct

0indirect

gosset PlackettLuce caret fastR2 finetune gap pairwiseLLM

Code & Tests

Datasets

People & History

People (2)

Maintainer (1)

Heather Turner

Author, Maintainer

Authors (2)

Heather Turner

Author, Maintainer

David Firth

Author

Package Timeline

18 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.1.3Latest
2025-04-10 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.1-2
2020-02-03 · diff ↗
1.1-0
2019-05-11 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.0-9
2019-02-25 · diff ↗
R
R 3.5.0 released · 2018-04-23
1.0-8
2017-09-20 · diff ↗
1.0-7
2017-08-26 · diff ↗
R
R 3.4.0 released · 2017-04-21

Show 22 earlier events

R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
1.0-6
2015-02-09 · diff ↗
1.0-5
2014-06-17 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.0-4
2013-09-21 · diff ↗
1.0-2
2013-07-18 · diff ↗
1.0-1
2013-06-20 · diff ↗
R
R 3.0.0 released · 2013-04-03
1.0-0
2012-05-14 · diff ↗
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
0.9-6
2011-09-19 · diff ↗
R
R 2.13.0 released · 2011-04-13
0.9-5
2011-02-25 · diff ↗
R
R 2.12.0 released · 2010-10-15
0.9-4
2010-10-12 · diff ↗
0.9-3
2010-10-04 · diff ↗
R
R 2.11.0 released · 2010-04-22
0.9-2
2010-03-18 · diff ↗
0.9-1
2010-02-23
R
R 2.10.0 released · 2009-10-26

Package metadata

First published: 2010-02-23
Total releases: 18 / 16 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 2.10
Bundled data: 229 KB / 10 files
Download size: 459 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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