The hardware and bandwidth for this mirror is donated by dogado GmbH, the Webhosting and Full Service-Cloud Provider. Check out our Wordpress Tutorial.
If you wish to report a bug, or if you are interested in having us mirror your free-software or open-source project, please feel free to contact us at mirror[@]dogado.de.

projoint: Conjoint Analysis with Reliability Correction and Visualization

Provides tools for analyzing data generated from conjoint survey experiments, a method widely used in the social sciences for studying multidimensional preferences. The package implements estimation of marginal means (MMs) and average marginal component effects (AMCEs), with corrections for measurement error. Methods include profile-level and choice-level estimators, bias correction using intra-respondent reliability (IRR), and visualization utilities. For details on the methodology, see Clayton, Horiuchi, Kaufman, King, and Komisarchik (2025) <https://gking.harvard.edu/conjointE>.

Version: 1.0.6
Depends: R (≥ 4.1.0)
Imports: dplyr (≥ 1.1.2), readr, rlang, tidyr, stringr, tidyselect, estimatr, ggthemes, ggplot2, stats, tibble, methods, MASS, forcats, scales
Suggests: tidyverse, knitr, rmarkdown, downloadthis, patchwork, testthat (≥ 3.0.0), DiagrammeR
Published: 2025-10-29
DOI: 10.32614/CRAN.package.projoint (may not be active yet)
Author: Yusaku Horiuchi ORCID iD [aut, cre], Aaron Kaufman ORCID iD [aut], Gary King ORCID iD [aut]
Maintainer: Yusaku Horiuchi <yusaku.horiuchi at gmail.com>
BugReports: https://github.com/yhoriuchi/projoint/issues
License: MIT + file LICENSE
URL: https://yhoriuchi.github.io/projoint/
NeedsCompilation: no
Citation: projoint citation info
Materials: README, NEWS
CRAN checks: projoint results

Documentation:

Reference manual: projoint.html , projoint.pdf
Vignettes: Analyze and Visualize Important QOIs (source, R code)
Correct Measurement-Error Bias (source)
Design Your Survey (source)
Explore and Compare Further (source, R code)
FAQ Page (source, R code)
Read and Wrangle Your Data (source, R code)
Choice-Level Analysis (source)

Downloads:

Package source: projoint_1.0.6.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): not available, r-oldrel (x86_64): not available

Linking:

Please use the canonical form https://CRAN.R-project.org/package=projoint to link to this page.

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.
Health stats visible at Monitor.