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cjbart: Heterogeneous Effects Analysis of Conjoint Experiments

A tool for analyzing conjoint experiments using Bayesian Additive Regression Trees ('BART'), a machine learning method developed by Chipman, George and McCulloch (2010) <doi:10.1214/09-AOAS285>. This tool focuses specifically on estimating, identifying, and visualizing the heterogeneity within marginal component effects, at the observation- and individual-level. It uses a variable importance measure ('VIMP') with delete-d jackknife variance estimation, following Ishwaran and Lu (2019) <doi:10.1002/sim.7803>, to obtain bias-corrected estimates of which variables drive heterogeneity in the predicted individual-level effects.

Version: 0.3.2
Depends: R (≥ 3.6.0), BART
Imports: stats, rlang, tidyr, ggplot2, randomForestSRC (≥ 3.2.2), Rdpack
Suggests: testthat (≥ 3.0.0), knitr, parallel, rmarkdown
Published: 2023-09-06
DOI: 10.32614/CRAN.package.cjbart
Author: Thomas Robinson ORCID iD [aut, cre, cph], Raymond Duch ORCID iD [aut, cph]
Maintainer: Thomas Robinson <ts.robinson1994 at gmail.com>
BugReports: https://github.com/tsrobinson/cjbart/issues
License: Apache License (≥ 2.0)
URL: https://github.com/tsrobinson/cjbart
NeedsCompilation: no
Materials: README NEWS
CRAN checks: cjbart results

Documentation:

Reference manual: cjbart.pdf
Vignettes: Introduction to cjbart

Downloads:

Package source: cjbart_0.3.2.tar.gz
Windows binaries: r-devel: cjbart_0.3.2.zip, r-release: cjbart_0.3.2.zip, r-oldrel: cjbart_0.3.2.zip
macOS binaries: r-release (arm64): cjbart_0.3.2.tgz, r-oldrel (arm64): cjbart_0.3.2.tgz, r-release (x86_64): cjbart_0.3.2.tgz, r-oldrel (x86_64): cjbart_0.3.2.tgz
Old sources: cjbart archive

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.