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: | 1.5-1 |
| 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,MASS,glmmTMB,brms,rstanarm,statmod,performance (≥ 0.7.2),see (≥ 0.6.4),ez,ggResidpanel, grid,vdiffr,GLMMadaptive,ggthemes |
| Published: | 2025-12-14 |
| 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 |