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projoint

Conjoint Analysis with Reliability Correction and Visualization

v1.1.1 · Feb 22, 2026 · MIT + file LICENSE

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>.

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CRAN Check Status

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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Jun 9, 2026
ERROR 12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Jun 7, 2026
ERROR r-devel-linux-x86_64-debian-gcc

R files for syntax errors

Fatal error: cannot create 'R_TempDir'
OK 12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 25, 2026
NOTE 11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
NOTE r-oldrel-macos-arm64

installed package size

installed size is  7.0Mb
  sub-directories of 1Mb or more:
    doc       1.8Mb
    extdata   4.0Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is  7.0Mb
  sub-directories of 1Mb or more:
    doc       1.8Mb
    extdata   4.0Mb
NOTE r-oldrel-windows-x86_64

installed package size

installed size is  7.0Mb
  sub-directories of 1Mb or more:
    doc       1.8Mb
    extdata   4.0Mb

Dependency Network

Dependencies Reverse dependencies dplyr readr rlang tidyr stringr tidyselect estimatr ggthemes ggplot2 tibble MASS forcats scales projoint

Version History

4 tracked
new 1.1.1 Mar 10, 2026
updated 1.1.1 ← 1.1.0 diff Feb 22, 2026
updated 1.1.0 ← 1.0.6 diff Feb 15, 2026
new 1.0.6 Oct 28, 2025