EloChoice

0.29.4

Preference Rating for Visual Stimuli Based on Elo Ratings

1packages depend

3.4Kdownloads / year

–test coverage

8/13checks pass

Overview

About

Maintained by Christof NeumannFirst published 2015-10-123 releasesCRAN page ↗GitHub ↗

Allows calculating global scores for characteristics of visual stimuli as assessed by human raters. Stimuli are presented as sequence of pairwise comparisons ('contests'), during each of which a rater expresses preference for one stimulus over the other (forced choice). The algorithm for calculating global scores is based on Elo rating, which updates individual scores after each single pairwise contest. Elo rating is widely used to rank chess players according to their performance. Its core feature is that dyadic contests with expected outcomes lead to smaller changes of participants' scores than outcomes that were unexpected. As such, Elo rating is an efficient tool to rate individual stimuli when a large number of such stimuli are paired against each other in the context of experiments where the goal is to rank stimuli according to some characteristic of interest. Clark et al (2018) doi:10.1371/journal.pone.0190393 provide details.

Install

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

install.packages("EloChoice", 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("gobbios/EloChoice")

Development version from gobbios/EloChoice. 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-elochoice

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

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-EloChoice

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# 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-EloChoice

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

Health

CRAN checks

1ERROR4NOTE8OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc
NOTE r-devel-windows-x86_64
ERROR r-oldrel-windows-x86_64
NOTE r-release-windows-x86_64

Slowest check: 3.9 min · r-devel-linux-x86_64-fedora-clang

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

ERROR2026-04-23
9 OK · 4 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-04-22
9 OK · 5 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
9 OK · 4 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
9 OK · 5 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 50%

Downloads

3.4K

CRAN downloads in the past year

Rank #14,226 · ~9/day · ~282/mo

Releases R versions

Daily download trend is not available in this view yet.

25030 days

72890 days

3.4K1 year

Compare downloads with other packages →

Also on407 r2u2 autocran31 c2d4u

Repository

GitHub ↗ gobbios/elochoice

4Stars

0Forks

0Open issues

0Open PRs

0Releases

6Commits

1Contributors

6 commits · Last activity 2025-01-29

Stars over time

2020-04-07 · 42026-07-07 · 4

Repository practices

Upstream repositoryBeta

3 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/gobbios/elochoice on 2026-07-31.

Continuous integration (2)

Travis CIAppVeyor

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (3)

Rcpp psychotools Rdpack

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (3)

xtable knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

pairwiseLLM

Code & Tests

Datasets

People & History

People (0)

Author records are not tracked yet for this package.

Listed in earlier versions (1)

Christof Neumann

no longer listed · 0.28 to 0.29.4

Package Timeline

3 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
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
0.29.4Latest
2019-07-04 · current release · diff ↗
unarchivedReturned to CRAN
2019-07-04
R
R 3.6.0 released · 2019-04-26
archivedRemoved from CRAN
2019-02-11
check problems were not corrected in time
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
0.29
2015-10-12 · diff ↗
0.28
2015-10-12

Show 1 earlier events

R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2015-10-12
Total releases: 3 / 11 yrs
License: GPL (>= 3) OSI
Bundled data: 14 KB / 1 file
Download size: 163 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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