Package: projoint
Type: Package
Title: Conjoint Analysis with Reliability Correction and Visualization
Version: 1.1.1
Date: 2026-02-22
Maintainer: Yusaku Horiuchi <yusaku.horiuchi@gmail.com>
Authors@R: 
    c(
      person("Yusaku", "Horiuchi", email = "yusaku.horiuchi@gmail.com",
             role = c("aut", "cre"),
             comment = c(ORCID = "https://orcid.org/0000-0003-0295-4089")),
      person("Aaron", "Kaufman", email = "aaronkaufman@nyu.edu",
             role = "aut",
             comment = c(ORCID = "https://orcid.org/0000-0003-3688-0428")),
      person("Gary", "King", email = "king@harvard.edu",
             role = "aut",
             comment = c(ORCID = "https://orcid.org/0000-0002-5327-7631"))
    )
Author: Yusaku Horiuchi [aut, cre] (ORCID:
        <https://orcid.org/0000-0003-0295-4089>), Aaron Kaufman [aut]
        (ORCID: <https://orcid.org/0000-0003-3688-0428>), Gary King
        [aut] (ORCID: <https://orcid.org/0000-0002-5327-7631>)
Description: 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>.
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
VignetteBuilder: knitr
License: MIT + file LICENSE
Encoding: UTF-8
RoxygenNote: 7.3.3
Config/testthat/edition: 3
URL: https://yhoriuchi.github.io/projoint/
Depends: R (>= 4.1.0)
LazyData: false
BugReports: https://github.com/yhoriuchi/projoint/issues
Config/pak/sysreqs: libicu-dev libx11-dev
Repository: https://yhoriuchi.r-universe.dev
Date/Publication: 2026-03-03 13:58:02 UTC
RemoteUrl: https://github.com/yhoriuchi/projoint
RemoteRef: HEAD
RemoteSha: 9f4ed714c6e79999ff7ef4670ba5eaf7e0770ffa
NeedsCompilation: no
Packaged: 2026-07-04 13:49:38 UTC; root