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).
| Version: |
1.5-0 |
| Depends: |
R (≥ 3.5.0), lme4 (≥ 1.1-8) |
| Imports: |
pbkrtest (≥ 0.4-1), lmerTest (≥ 3.0-0), car, reshape2, stats, methods, utils, reformulas, rlang |
| Suggests: |
emmeans (≥ 1.4), coin, xtable, parallel, plyr, optimx, nloptr, knitr, rmarkdown, R.rsp, lattice, latticeExtra, multcomp, testthat, mlmRev, dplyr, tidyr, dfoptim, Matrix, psychTools, ggplot2, MEMSS, effects, carData, ggbeeswarm, nlme, cowplot, jtools, ggpubr, ggpol, MASS, glmmTMB, brms, rstanarm, statmod, performance (≥ 0.7.2), see (≥ 0.6.4), ez, ggResidpanel, grid, vdiffr, GLMMadaptive |
| Published: |
2025-08-24 |
| DOI: |
10.32614/CRAN.package.afex |
| Author: |
Henrik Singmann 
[aut, cre],
Ben Bolker [aut],
Jake Westfall [aut],
Frederik Aust
[aut],
Mattan S. Ben-Shachar [aut],
Søren Højsgaard [ctb],
John Fox [ctb],
Michael A. Lawrence [ctb],
Ulf Mertens [ctb],
Jonathon Love [ctb],
Russell Lenth [ctb],
Rune Haubo Bojesen Christensen [ctb] |
| Maintainer: |
Henrik Singmann <singmann at gmail.com> |
| BugReports: |
https://github.com/singmann/afex/issues |
| License: |
GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| URL: |
https://afex.singmann.science/, https://github.com/singmann/afex |
| NeedsCompilation: |
no |
| Materials: |
README, NEWS |
| In views: |
MixedModels |
| CRAN checks: |
afex results |