{ "_id": "6a12aa05acfb0bcc41d169ff", "Package": "EMC2", "Title": "Bayesian Hierarchical Analysis of Cognitive Models of Choice", "Version": "3.4.1", "Authors@R": "c(person(\"Niek\", \"Stevenson\", email = \"niek.stevenson@gmail.com\",\nrole = c(\"aut\", \"cre\"), comment = c(ORCID = \"0000-0003-3206-7544\")),\nperson(\"Michelle\", \"Donzallaz\", role = c(\"aut\")),\nperson(\"Andrew\", \"Heathcote\", role = c(\"aut\")),\nperson(\"Steven\", \"Miletić\", role = c(\"aut\")),\nperson(\"Luke\", \"Strickland\", role = c(\"ctb\")),\nperson(\"Frank\", \"Hezemans\", role = c(\"ctb\")),\nperson(\"Raphael\", \"Hartmann\", role = c(\"ctb\")),\nperson(\"Karl C.\", \"Klauer\", role=c(\"ctb\")),\nperson(\"Steven G.\", \"Johnson\", role=c(\"ctb\")),\nperson(\"Jean M.\", \"Linhart\", role=c(\"ctb\")),\nperson(\"Brian\", \"Gough\", role=c(\"ctb\")),\nperson(\"Gerard\", \"Jungman\", role=c(\"ctb\")),\nperson(\"Rudolf\", \"Schuerer\", role=c(\"ctb\")),\nperson(\"Przemyslaw\", \"Sliwa\", role=c(\"ctb\")),\nperson(\"Jason H.\", \"Stover\", role=c(\"ctb\")))", "Description": "Fit Bayesian (hierarchical) cognitive models using a\nlinear modeling language interface using particle Metropolis\nMarkov chain Monte Carlo sampling with Gibbs steps. The\ndiffusion decision model (DDM), linear ballistic accumulator\nmodel (LBA), racing diffusion model (RDM), and the lognormal\nrace model (LNR) are supported. Additionally, users can specify\ntheir own likelihood function and/or choose for\nnon-hierarchical estimation, as well as for a diagonal, blocked\nor full multivariate normal group-level distribution to test\nindividual differences. Prior specification is facilitated\nthrough methods that visualize the (implied) prior. A wide\nrange of plotting functions assist in assessing model\nconvergence and posterior inference. Models can be easily\nevaluated using functions that plot posterior predictions or\nusing relative model comparison metrics such as information\ncriteria or Bayes factors. References: Stevenson et al. (2024)\n.", "License": "GPL (>= 3)", "URL": "https://ampl-psych.github.io/EMC2/,\nhttps://github.com/ampl-psych/EMC2", "BugReports": "https://github.com/ampl-psych/EMC2/issues", "Encoding": "UTF-8", "Roxygen": "list(markdown = TRUE)", "RoxygenNote": "7.3.3", "VignetteBuilder": "knitr", "Config/testthat/edition": "3", "LazyData": "true", "Config/testthat/parallel": "true", "Repository": "https://ampl-psych.r-universe.dev", "Date/Publication": "2026-03-25 13:14:10 UTC", "RemoteUrl": "https://github.com/ampl-psych/emc2", "RemoteRef": "HEAD", "RemoteSha": "1887e45a6225f6ad29e9016ec17f58c471859301", "NeedsCompilation": "yes", "Packaged": { "Date": "2026-05-24 07:22:26 UTC", "User": "root" }, "Author": "Niek Stevenson [aut, cre] (ORCID:\n),\nMichelle Donzallaz [aut],\nAndrew Heathcote [aut],\nSteven Miletić [aut],\nLuke Strickland [ctb],\nFrank Hezemans [ctb],\nRaphael Hartmann [ctb],\nKarl C. Klauer [ctb],\nSteven G. Johnson [ctb],\nJean M. Linhart [ctb],\nBrian Gough [ctb],\nGerard Jungman [ctb],\nRudolf Schuerer [ctb],\nPrzemyslaw Sliwa [ctb],\nJason H. 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