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ez  

Easy Analysis and Visualization of Factorial Experiments
View on CRAN: Click here


Download and install ez package within the R console
Install from CRAN:
install.packages("ez")

Install from Github:
library("remotes")
install_github("cran/ez")

Install by package version:
library("remotes")
install_version("ez", "4.4-0")



Attach the package and use:
library("ez")
Maintained by
Michael A. Lawrence
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2009-04-26
Latest Update: 2016-11-02
Description:
Facilitates easy analysis of factorial experiments, including purely within-Ss designs (a.k.a. "repeated measures"), purely between-Ss designs, and mixed within-and-between-Ss designs. The functions in this package aim to provide simple, intuitive and consistent specification of data analysis and visualization. Visualization functions also include design visualization for pre-analysis data auditing, and correlation matrix visualization. Finally, this package includes functions for non-parametric analysis, including permutation tests and bootstrap resampling. The bootstrap function obtains predictions either by cell means or by more advanced/powerful mixed effects models, yielding predictions and confidence intervals that may be easily visualized at any level of the experiment's design.
How to cite:
Michael A. Lawrence (2009). ez: Easy Analysis and Visualization of Factorial Experiments. R package version 4.4-0, https://cran.r-project.org/web/packages/ez. Accessed 18 Sep. 2026.
Previous versions and publish date:
(2026-07-09 07:37), 1.0 (2009-04-26 20:47), 1.1 (2009-04-27 08:48), 1.2 (2009-05-18 12:17), 1.3 (2009-05-20 08:55), 1.4.1 (2009-10-01 21:54), 1.4.2 (2009-10-07 17:33), 1.4 (2009-09-09 09:25), 1.5.1 (2010-01-13 08:45), 1.5 (2009-12-04 09:15), 1.6.1 (2010-03-21 19:15), 1.6 (2010-01-18 08:56), 2.0-0 (2010-08-30 12:18), 2.1-0 (2010-09-29 10:00), 3.0-0 (2011-02-06 10:19), 3.0-1 (2012-03-02 16:26), 4.0-2 (2012-08-07 17:07), 4.1-1 (2012-08-11 19:03), 4.2-0 (2013-06-21 07:41), 4.2-2 (2013-09-13 20:32), 4.3 (2015-11-13 23:54), 4.4-0 (2016-11-02 18:17)
Other packages that cited ez R package
View ez citation profile
Other R packages that ez depends, imports, suggests or enhances
Complete documentation for ez
Functions, R codes and Examples using the ez R package
Some associated functions: ANT . ANT2 . ez-internal . ez-package . ezANOVA . ezBoot . ezCor . ezDesign . ezMixed . ezMixedProgress . ezPerm . ezPlot . ezPlot2 . ezPrecis . ezPredict . ezResample . ezStats . 
Some associated R codes: ez-internal.R . ezANOVA.R . ezBoot.R . ezCor.R . ezDesign.R . ezMixed.R . ezMixedProgress.R . ezPerm.R . ezPlot.R . ezPlot2.R . ezPrecis.R . ezPredict.R . ezResample.R . ezStats.R .  Full ez package functions and examples
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