Package: D3mirt
Title: Descriptive 3D Multidimensional Item Response Theory Modeling
Version: 2.0.5
Authors@R: 
    person("Erik", "Forsberg", email= "forsbergpsychometrics@gmail.com", role = c("aut", "cre", "cph"),
           comment = c(ORCID = "0000-0002-5228-9729"))
Description: For identifying, estimating, and plotting descriptive multidimensional item response theory models, restricted to 3D and dichotomous or polytomous data that fit the two-parameter logistic model or the graded response model. The method is primarily exploratory and centered on the plot function, which exposes item characteristics and constructs, represented by vector arrows, within a three-dimensional interactive latent space. The results can be useful for item-level analysis as well as test development.
License: GPL (>= 3)
URL: https://github.com/ForsbergPyschometrics/D3mirt
BugReports: https://github.com/ForsbergPyschometrics/D3mirt/issues
Depends: R (>= 3.6.0)
Imports: mirt, rgl (>= 1.3.1)
Suggests: knitr, rmarkdown, stats, testthat, R.rsp
Encoding: UTF-8
RoxygenNote: 7.3.3
LazyData: true
VignetteBuilder: R.rsp
Config/testthat/edition: 3
NeedsCompilation: no
Packaged: 2026-06-06 18:03:59 UTC; roadcastermusic
Author: Erik Forsberg [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0002-5228-9729>)
Maintainer: Erik Forsberg <forsbergpsychometrics@gmail.com>
Repository: CRAN
Date/Publication: 2026-06-07 06:10:14 UTC
Built: R 4.5.2; ; 2026-06-07 07:26:22 UTC; unix
