Package: TreeBUGS Version: 1.6.0 Date: 2026-05-07 Title: Hierarchical Multinomial Processing Tree Modeling Authors@R: c(person("Daniel W.", "Heck", role=c("aut","cre"), email="daniel.heck@uni-marburg.de", comment = c(ORCID = "0000-0002-6302-9252")), person("Nina R.", "Arnold", role = c("aut","dtc"), email="arnold@uni-mannheim.de"), person("Denis", "Arnold", role = c("aut"), email="denis.arnold@uni-tuebingen.de"), person("Alexander", "Ly", role = c("ctb"), email="a.ly@uva.nl"), person("Marius", "Barth", role = c("ctb"), email="marius.barth@uni-koeln.de", comment = c(ORCID = "0000-0002-3421-6665"))) Maintainer: Daniel W. Heck Depends: R (>= 4.0.0) Imports: Rcpp (>= 1.0.0), stats, parallel, graphics, utils, grDevices, MASS, runjags, rjags, coda, hypergeo, logspline Suggests: knitr, rmarkdown, testthat, R.rsp LinkingTo: Rcpp, RcppArmadillo VignetteBuilder: knitr, R.rsp NeedsCompilation: yes SystemRequirements: JAGS (https://mcmc-jags.sourceforge.io/) Description: User-friendly analysis of hierarchical multinomial processing tree (MPT) models that are often used in cognitive psychology. Implements the latent-trait MPT approach (Klauer, 2010) and the beta-MPT approach (Smith & Batchelder, 2010) to model heterogeneity of participants. MPT models are conveniently specified by an .eqn-file as used by other MPT software and data are provided by a .csv-file or directly in R. Models are either fitted by calling JAGS or by an MPT-tailored Gibbs sampler in C++ (only for nonhierarchical and beta MPT models). Provides tests of heterogeneity and MPT-tailored summaries and plotting functions. A detailed documentation is available in Heck, Arnold, & Arnold (2018) and a tutorial on MPT modeling can be found in Schmidt, Erdfelder, & Heck (2023) . License: GPL-3 Encoding: UTF-8 URL: https://github.com/danheck/TreeBUGS LazyData: TRUE Config/roxygen2/version: 8.0.0 Config/pak/sysreqs: jags pari-gp Repository: https://danheck.r-universe.dev Date/Publication: 2026-05-07 00:53:42 UTC RemoteUrl: https://github.com/danheck/treebugs RemoteRef: HEAD RemoteSha: 8601a71e6d820e01f0ba25a50ce650238e263f37 Packaged: 2026-06-06 10:04:31 UTC; root Author: Daniel W. Heck [aut, cre] (ORCID: ), Nina R. Arnold [aut, dtc], Denis Arnold [aut], Alexander Ly [ctb], Marius Barth [ctb] (ORCID: )