afex: Analysis of Factorial Experiments

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Provides 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 between- within (i.e., split-plot) ANOVAs for data in long format (i.e., one observation per row), potentially 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 approximation for degrees of freedom (LMM only), parametric bootstrap (LMMs and GLMMs), or likelihood ratio tests (LMMs and GLMMs). afex uses type 3 sums of squares as default (imitating commercial statistical software).

Author
Henrik Singmann [aut, cre], Ben Bolker [aut], Jake Westfall [aut], Frederik Aust [aut], Søren Højsgaard [ctb], John Fox [ctb], Michael A. Lawrence [ctb], Ulf Mertens [ctb]
Date of publication
2016-04-04 01:11:31
Maintainer
Henrik Singmann <singmann+afex@gmail.com>
License
GPL (>= 3)
Version
0.16-1
URLs

View on CRAN

Man pages

afex_aov-methods
Methods for afex_aov objects
afex_options
Set/get global afex options
afex-package
The afex Package
allFit
Refit 'lmer' model using multiple optimizers
aov_car
Convenient ANOVA estimation for factorial designs
compare.2.vectors
Compare two vectors using various tests.
deprecated
Deprecated functions
ems
Expected values of mean squares for factorial designs...
ks2013.3
Data from Klauer & Singmann (2013, Experiment 3)
md_12.1
Data 12.1 from Maxwell & Delaney
md_15.1
Data 15.1 / 11.5 from Maxwell & Delaney
md_16.1
Data 16.1 / 10.9 from Maxwell & Delaney
md_16.4
Data 16.4 from Maxwell & Delaney
mixed
p-values for fixed effects of mixed-model via lme4::lmer()
nice
Make nice ANOVA table for printing.
obk.long
O'Brien Kaiser's Repeated-Measures Dataset with Covariate
round_ps
Helper function which rounds p-values
set_sum_contrasts
Set global contrasts
sk2011.1
Data from Singmann & Klauer (2011, Experiment 1)
sk2011.2
Data from Singmann & Klauer (2011, Experiment 2)

Files in this package

afex
afex/inst
afex/inst/doc
afex/inst/doc/anova_posthoc.html
afex/inst/doc/anova_posthoc.R
afex/inst/doc/anova_posthoc.Rmd
afex/tests
afex/tests/testthat.R
afex/tests/testthat
afex/tests/testthat/lmm_old_object.rda
afex/tests/testthat/test-lsmeans-interface.R
afex/tests/testthat/test-mixed-structure.R
afex/tests/testthat/test-compare_2_vectors.R
afex/tests/testthat/test-aov_car-structural.R
afex/tests/testthat/test-aov_car-bugs.R
afex/tests/testthat/test-mixed-mw.R
afex/tests/testthat/test-aov_car-basic.R
afex/tests/testthat/test-afex_aov.R
afex/tests/testthat/test-mixed-bugs.R
afex/NAMESPACE
afex/NEWS
afex/data
afex/data/sk2011.2.rda
afex/data/sk2011.1.rda
afex/data/md_15.1.rda
afex/data/ks2013.3.rda
afex/data/obk.long.rda
afex/data/md_16.4.rda
afex/data/md_16.1.rda
afex/data/md_12.1.rda
afex/R
afex/R/md_16.4-data.R
afex/R/ems.R
afex/R/round_ps.R
afex/R/aov_car.R
afex/R/helpers.R
afex/R/sk2011.2-data.R
afex/R/afex-package.R
afex/R/set_contrasts.R
afex/R/ks2013.3-data.R
afex/R/md_16.1-data.R
afex/R/obk.long-data.R
afex/R/compare.2.vectors.R
afex/R/sk2011.1-data.R
afex/R/md_15.1-data.R
afex/R/mixed.R
afex/R/nice.R
afex/R/md_12.1-data.R
afex/R/deprecated.R
afex/R/allFit.R
afex/R/methods.afex_aov.R
afex/R/zzz.R
afex/vignettes
afex/vignettes/anova_posthoc.Rmd
afex/MD5
afex/build
afex/build/vignette.rds
afex/DESCRIPTION
afex/man
afex/man/deprecated.Rd
afex/man/mixed.Rd
afex/man/ems.Rd
afex/man/sk2011.1.Rd
afex/man/afex-package.Rd
afex/man/sk2011.2.Rd
afex/man/md_16.1.Rd
afex/man/round_ps.Rd
afex/man/compare.2.vectors.Rd
afex/man/afex_aov-methods.Rd
afex/man/nice.Rd
afex/man/ks2013.3.Rd
afex/man/allFit.Rd
afex/man/obk.long.Rd
afex/man/aov_car.Rd
afex/man/md_16.4.Rd
afex/man/set_sum_contrasts.Rd
afex/man/md_12.1.Rd
afex/man/md_15.1.Rd
afex/man/afex_options.Rd