conquestr: An R Front End for 'ACER ConQuest'

Extends 'ACER ConQuest' through a family of functions designed to improve graphical outputs and help with advanced analysis (e.g., differential item functioning). Allows R users to call 'ACER ConQuest' from within R and read 'ACER ConQuest' System Files (generated by the command 'put'). Requires 'ACER ConQuest' version 5.12.3 or later. A demonstration version can be downloaded from <>.

Version: 0.8.5
Imports: Rcpp, stats, reshape, ggplot2 (≥ 3.3.0), stringr, rlang, ggrepel, methods
LinkingTo: Rcpp
Suggests: dplyr, knitr, rmarkdown
Published: 2020-08-10
Author: Dan Cloney [cre, aut], Ray Adams [aut]
Maintainer: Dan Cloney <dan.cloney at>
License: GPL-3
NeedsCompilation: yes
SystemRequirements: ACER ConQuest (>=5.12.3)
Materials: README NEWS
In views: Psychometrics
CRAN checks: conquestr results


Reference manual: conquestr.pdf
Vignettes: Introduction to ConQuestR
Package source: conquestr_0.8.5.tar.gz
Windows binaries: r-devel:, r-devel-UCRT:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): conquestr_0.8.5.tgz, r-release (x86_64): conquestr_0.8.5.tgz, r-oldrel: conquestr_0.8.5.tgz
Old sources: conquestr archive


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