ARTool | R Package for Aligned Rank Transform | Machine Learning library
kandi X-RAY | ARTool Summary
kandi X-RAY | ARTool Summary
ARTool is an R package implementing the Aligned Rank Transform for conducting nonparametric analyses of variance on factorial models. This implementation is based on the ART procedure as used in the original implementation of ARTool by Wobbrock et al. The package automates the Aligning-and-Ranking process using the art function. It also automates the process of running a series of ANOVAs on the transformed data and extracting the results of interest. It supports traditional ANOVA models (fit using lm), repeated measures ANOVAs (fit using aov), and mixed effects models (fit using lmer); the model used is determined by the formula passed to art. Note: The documentation of this package assumes some level of familiarity with when and why you may want to use the aligned rank transform; the ARTool page provides a more in-depth (and highly approachable) introduction to the aligned rank transform and the motivation for its use.
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ARTool Key Features
ARTool Examples and Code Snippets
Community Discussions
Trending Discussions on ARTool
QUESTION
I calculated several rank-aligned ANOVAs using the ARTool package in RStudio. Please note that all included variables are repeated measures (i.e., within-subjects; all participants went through all experimental manipulations).
According to this source https://cran.r-project.org/web/packages/ARTool/vignettes/art-effect-size.html, the output should include the partial eta squared and the sum of squares, respectively. However, I found that only the output of a between-subjects design contains the sum of squares. If I calculate a within-subjects ANOVA, the partial eta squared or sum of squares are not printed. Does anyone have an idea on why this occurs? (I've updated the ARTool package to its latest version)
The example does not actually make sense with this dataset, but just to demonstrate:
...ANSWER
Answered 2022-Jan-09 at 13:10Partial eta-squared can also be calculated from the F value and the degrees of freedom.
With the caveat that I wrote it, at the time of writing, this is addressed here: rcompanion.org/handbook/F_16.html
A simple example:
QUESTION
I would like to convert a list to dataframe (picture as below)
I did use do.call(rbind.data.frame, contrast)
, however, I got this Error in xi[[j]] : this S4 class is not subsettable
. I still can read them separately. Anyone know about this thing?
This list I got when running the ART anova test by using the package ARTool
Update
This my orignial code to calculate and get the model done.
...ANSWER
Answered 2021-Oct-30 at 22:46With rbind
, instead of rbind.data.frame
, there is a specific method for 'emmGrid' object and it can directly use the correct method by matching the class
if we specify just rbind
QUESTION
I'm producing a post-hoc test, using ARTool package, to see the difference among combinations of factors, but receive the below error
Error: Can't assign to columns that don't exist. x Column
grade_levelbooks_quantile
doesn't exist. Runrlang::last_error()
to see where the error occurred.
Below is the notes after traceback:
...ANSWER
Answered 2021-Apr-11 at 22:18I'm not absolutely sure, but I'd almost bet money that this is what you need:
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