R Observatory: Metrics for afex version 1.5-1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

afex

1.5-1Package record

Analysis of Factorial Experiments

10packages dependsuggested by 18

338.9Kdownloads / year

78.5%test coverage

8/13flavors OK

Overview

About

Maintained by Henrik SingmannCRAN page ↗GitHub ↗Website ↗Issues ↗

Convenience functions for analyzing factorial experiments using ANOVA or mixed models. aov_ez(), aov_car(), and aov_4() allow specification of between, within (i.e., repeated-measures), or mixed (i.e., split-plot) ANOVAs for data in long format (i.e., one observation per row), automatically aggregating multiple observations per individual and cell of the design. mixed() fits mixed models using lme4::lmer() and computes p-values for all fixed effects using either Kenward-Roger or Satterthwaite approximation for degrees of freedom (LMM only), parametric bootstrap (LMMs and GLMMs), or likelihood ratio tests (LMMs and GLMMs). afex_plot() provides a high-level interface for interaction or one-way plots using ggplot2, combining raw data and model estimates. afex uses type 3 sums of squares as default (imitating commercial statistical software).

Install

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

install.packages("afex", 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("singmann/afex")

Development version from singmann/afex. 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-afex

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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-afex

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-afex

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

5NOTE8OK

Check messages

NOTER code for possible problemsr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-x86_64

Found calls to structure() using deprecated special names:
  afex/tests/testthat/test-aov_car-basic.R (.Names: 2)
'.Names' should be changed to 'names'.

NOTEdependencies in R coder-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-x86_64

r-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc

Base package in Suggests/Enhances imported in NAMESPACE:
  ‘parallel’

r-devel-windows-x86_64

Base package in Suggests/Enhances imported in NAMESPACE:
  'parallel'

CRAN check page ↗

Slowest check: 7.7 min · r-oldrel-windows-x86_64

Status changes

NOTE8 OK, 5 NOTE2026-09-08
ERROR8 OK, 4 NOTE, 1 ERROR2026-09-07
NOTE10 OK, 3 NOTE2026-07-16
OK13 OK2026-07-13
ERROR12 OK, 1 ERROR2026-07-11

Show 3 earlier changesHide 3 earlier changes

OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.5-1

READMEYes · 1,627 wordsVignettesYes · 7 · dynamicNEWSYes · 0% structuredCitation fileNoWebsiteYes

Help pages: 26 (2 internal)includes a package overview page
Examples that run: 100%19 run in a plain check (1 of them under a condition)
Exported functions with examples: 73%
Documented parameters: 80%
Return-value docs: 82%
Help pages citing references: 19%

Vignettes (7)

How these are measured

Downloads

338.9K

CRAN downloads in the past year

Rank #741 · ~928/day · ~28.2K/mo

Releases R versions

Daily download trend is not available in this view yet.

24.7K30 days

68.5K90 days

338.9K1 year

Compare downloads with other packages →

Also on3.9K r2u141 autocran6.5K conda_forge137 c2d4u

How downloads are counted

Repository

singmann/afex ↗Account: singmann

132Stars

30Forks

19Open issues

1Open PRs

0Releases

680Commits

16Commit identities

680 commits · Last activity 2025-12-14 · +0.8% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 82%
Median days to close, 50 most recently updated closed issues: 16
Median days to close, 50 most recently updated closed PRs: 2

Stars over time

2025-10-14 · 1272026-09-29 · 132

How these are measured

PracticesBeta

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

Checks run against github.com/singmann/afex on 2026-10-11.

Continuous integration (1)

GitHub Actions

Governance and community (1)

Code of conduct

Docs source (2)

README.Rmd

GitHub Pages site last deployed 2025-12-14

Lint, format, editor (3)

AirVS CodeRStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

43 external dependencies (excludes base and recommended)

Installing afex adds 63 packages (34 with compiled code, 55 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, doBy 4.3 MB.

Depends (2)

R >= 3.5.0lme4

Imports (9)

pbkrtest lmerTest car reshape2statsmethodsutilsreformulas rlang

LinkingTo (0)

none

Suggests (42)

emmeans coin xtableparallelplyr optimx nloptr knitr rmarkdown R.rsplatticelatticeExtra multcomp testthat mlmRev dplyr tidyr dfoptimMatrixpsychTools ggplot2 MEMSS effects carData ggbeeswarmnlmecowplot jtools ggpubrMASSglmmTMB brms rstanarm statmod performance see ez ggResidpanelgridvdiffr GLMMadaptive ggthemes

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

10direct

8indirect

Depends 1 · Imports 9

Suggested by 18

Show all 28 packagesHide all 28 packages

Depends, Imports or LinkingTo, most downloaded first

statsExpressions jmv bruceR Superpower r2glmm BiostatsUHNplus fullfact pwr2ppl AOboot extraSuperpower

Suggests, most downloaded first

insight performance parameters effectsize marginaleffects ggeffects modelbased ggstatsplot papaja TOSTER apa standardize tidystats designr colleyRstats prmisc mellio statwitness

How these are counted

Code & Tests

Datasets

People & History

People (12)

Henrik Singmann

Author, Maintainer since 0.2-26 (2012)

Frederik Aust

Author · added in 0.15-2

Mattan S. Ben-Shachar

Author · added in 0.24-1

Ben Bolker

Author · added in 0.14-2

Jake Westfall

Author · added in 0.14-2

John Fox

Contributor · added in 0.14-2

Rune Haubo Bojesen Christensen

Contributor · added in 0.20-2

Søren Højsgaard

Contributor · added in 0.14-2

Michael A. Lawrence

Contributor · added in 0.14-2

Russell Lenth

Contributor · added in 0.20-2

Jonathon Love

Contributor · added in 0.20-2

Ulf Mertens

Contributor · added in 0.14-2

Listed in earlier versions (1)

Jonathan Love

no longer listed · 0.17-8 to 0.19-1

Releases (39)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.5-1Latest
record
2025-12-14 · current release · diff ↗
1.5-0
record
2025-08-24 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.4-1
record
2024-09-01 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.3-1
record
2024-02-25 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.3-0
record
2023-04-18 · diff ↗ ·
removed 5 exports
all_fit, aov.car, aov4, ez.glm, nmkbw
1.2-1
record
2023-01-09 · diff ↗
1.2-0
record
2022-10-31 · diff ↗
1.1-1
record
2022-04-30 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.1-0
record
2022-03-27 · diff ↗
1.0-1
record
2021-07-22 · diff ↗
1.0-0
record
2021-07-21 · diff ↗

Show 38 earlier eventsHide 38 earlier events

R
R 4.1.0 released · 2021-05-18
0.28-1
record
2021-01-12 · diff ↗
0.28-0
record
2020-09-20 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.27-2
record
2020-03-28 · diff ↗ ·
added 1 export
round_ps_apa
0.26-0
record
2020-01-16 · diff ↗
0.25-1
record
2019-08-27 · diff ↗
0.24-1
record
2019-07-03 · diff ↗ ·
added 2 exports
test_levene, test_sphericity
R
R 3.6.0 released · 2019-04-26
0.23-0
record
2019-02-19 · diff ↗
0.22-1
record
2018-09-24 · diff ↗ ·
added 3 exports
afex_plot, interaction_plot, oneway_plot
0.21-2
record
2018-06-24 · diff ↗
R
R 3.5.0 released · 2018-04-23
0.20-2
record
2018-04-04 · diff ↗
0.19-1
record
2018-01-08 · diff ↗
0.18-0
record
2017-05-26 · diff ↗
R
R 3.4.0 released · 2017-04-21
0.17-8
record
2017-04-13 · diff ↗ ·
removed 1 export
allFit

added 3 exports
all_fit, lmer, nmkbw
R
R 3.3.0 released · 2016-05-03
0.16-1
record
2016-04-04 · diff ↗
0.15-2
record
2015-10-25 · diff ↗
0.14-2
record
2015-08-17 · diff ↗ ·
removed 2 exports
nice.anova, univ

added 6 exports
afex_options, aov_4, aov_car, aov_ez, lmer_alt, nice
R
R 3.2.0 released · 2015-04-16
0.13-145
record
2015-01-12 · diff ↗ ·
added 1 export
ems
0.12-135
record
2014-11-03 · diff ↗
0.11-131
record
2014-10-12 · diff ↗ ·
added 1 export
allFit
0.10-113
record
2014-08-05 · diff ↗ ·
added 5 exports
set_default_contrasts, set_deviation_contrasts, set_effects_contrasts, set_sum_contrasts, set_treatment_contrasts
0.9-109
record
2014-04-24 · diff ↗ ·
added 1 export
aov4
R
R 3.1.0 released · 2014-04-10
0.8-94
record
2014-02-23 · diff ↗ ·
added 1 export
round_ps
0.7-90
record
2013-12-04 · diff ↗
0.6-82
record
2013-09-26 · diff ↗
0.5-71
record
2013-05-29 · diff ↗
R
R 3.0.0 released · 2013-04-03
0.4-57
record
2013-02-11 · diff ↗ ·
removed 1 export
.Last.lib
0.3-42
record
2012-09-17 · diff ↗ ·
removed 1 export
univariate

added 2 exports
compare.2.vectors, univ
0.2-26
record
2012-08-09
R
R 2.15.0 released · 2012-03-30

Package metadata

First published: 2012-08-09
Total releases: 39 / 14 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.5.0
Bundled data: 389 KB / 11 files
Download size: 4.2 MB

Appears in task views

Mixed, Multilevel, and Hierarchical Models in R

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("afex")

Format

Singmann, H., Aust, F., Ben-Shachar, M. S., Bolker, B., Fox, J., Haubo Bojesen Christensen, R., Højsgaard, S., Lawrence, M. A., Lenth, R., Love, J., Mertens, U., & Westfall, J. (2025). afex: Analysis of Factorial Experiments (Version 1.5-1) [Computer software]. https://doi.org/10.32614/CRAN.package.afex

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for afex version 1.5-1 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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