Package: GPCMlasso
Type: Package
Title: Differential Item Functioning in Generalized Partial Credit
        Models
Version: 0.1-9
Date: 2026-05-11
Authors@R: person(given = "Gunther",
                      family = "Schauberger",
                      role = c("aut", "cre"),
                      email = "gunther.schauberger@tum.de")
Maintainer: Gunther Schauberger <gunther.schauberger@tum.de>
Description: Provides a framework to detect Differential Item
        Functioning (DIF) in Generalized Partial Credit Models (GPCM)
        and special cases of the GPCM as proposed by Schauberger and
        Mair (2019) <doi:10.3758/s13428-019-01224-2>. A joint model is
        set up where DIF is explicitly parametrized and penalized
        likelihood estimation is used for parameter selection. The big
        advantage of the method called GPCMlasso is that several
        variables can be treated simultaneously and that both
        continuous and categorical variables can be used to detect DIF.
License: GPL (>= 2)
Imports: Rcpp (>= 0.12.4), TeachingDemos, cubature, caret, statmod,
        mvtnorm, mirt, methods
Depends: ltm
LinkingTo: Rcpp, RcppArmadillo
Encoding: UTF-8
Config/roxygen2/version: 8.0.0
NeedsCompilation: yes
Packaged: 2026-06-10 06:24:57 UTC; root
Author: Gunther Schauberger [aut, cre]
Config/pak/sysreqs: cmake make libicu-dev libuv1-dev libx11-dev
Repository: https://schaubert.r-universe.dev
Date/Publication: 2026-05-11 08:39:27 UTC
RemoteUrl: https://github.com/cran/GPCMlasso
RemoteRef: HEAD
RemoteSha: 1e1572cde152b21605ad990d0a2568b7ae040154