fairmodels

1.2.2

Flexible Tool for Bias Detection, Visualization, and Mitigation

2packages depend

9.6Kdownloads / year

85.5%test coverage

13/13checks pass

Overview

About

Maintained by Jakub WiśniewskiFirst published 2020-08-208 releasesCRAN page ↗GitHub ↗

Measure fairness metrics in one place for many models. Check how big is model's bias towards different races, sex, nationalities etc. Use measures such as Statistical Parity, Equal odds to detect the discrimination against unprivileged groups. Visualize the bias using heatmap, radar plot, biplot, bar chart (and more!). There are various pre-processing and post-processing bias mitigation algorithms implemented. Package also supports calculating fairness metrics for regression models. Find more details in (Wiśniewski, Biecek (2021)) doi:10.48550/arXiv.2104.00507.

Install

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

install.packages("fairmodels", 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("ModelOriented/fairmodels")

Development version from ModelOriented/fairmodels. 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-fairmodels

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-fairmodels

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-fairmodels

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

Health

CRAN checks

13OK

Slowest check: 7.3 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.17

85.5%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 559 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 96%
References docs: 13%

Downloads

9.6K

CRAN downloads in the past year

Rank #7,338 · ~26/day · ~800/mo

Releases R versions

Daily download trend is not available in this view yet.

41230 days

1.4K90 days

9.6K1 year

Compare downloads with other packages →

Also on141 r2u31 autocran748 conda_forge

Repository

GitHub ↗ modeloriented/fairmodels

85Stars

16Forks

4Open issues

0Open PRs

8Releases

234Commits

5Contributors

fairnessexplainable-mlexplain-classifiersfairness-mlfairness-comparisonmodel-evaluation

License GPL-3.0 · 234 commits · Last activity 2025-10-31

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/modeloriented/fairmodels on 2026-07-19.

Continuous integration (1)

GitHub Actions

Lint, format, editor (1)

RStudio project

Coverage (1)

Codecov

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

13 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5

Imports (5)

DALEX ggplot2 scalesstatspatchwork

LinkingTo (0)

none

Suggests (9)

ranger gbm knitr rmarkdown covr testthat spelling ggdendro ggrepel

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

arenar fastml

Code & Tests

Datasets

People & History

People (2)

Maintainer (1)

Jakub Wiśniewski

Author, Maintainer

Authors (2)

Jakub Wiśniewski

Author, Maintainer

Przemysław Biecek

Author

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.2.2Latest
2025-11-30 · current release · diff ↗
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
1.2.1
2022-08-23 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.2.0
2021-10-08 · diff ↗
1.1.0
2021-05-31 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.0.1
2021-04-14 · diff ↗
0.2.4
2020-12-12 · diff ↗
0.2.2
2020-09-21 · diff ↗
0.1.1
2020-08-20
R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2020-08-20
Total releases: 8 / 6 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5
Bundled data: 354 KB / 4 files
Download size: 2.1 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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