{
  "_id": "6ae2f6613d0f299392dd020a",
  "Package": "MixMatrix",
  "Type": "Package",
  "Title": "Classification with Matrix Variate Normal and t Distributions",
  "Version": "0.2.8",
  "Authors@R": "c(person(\"Geoffrey\", \"Thompson\", ,email=\"gzthompson@gmail.com\",\nrole = c(\"aut\", \"cre\"), comment = c(ORCID = '0000-0003-2436-8822')),\nperson(\"B. D.\", \"Ripley\",\ncomment = \"author of original lda and qda functions\",\nemail = \"ripley@stats.ox.ac.uk\", role = c(\"ctb\",\"cph\")),\nperson(\"W. N.\", \"Venables\",\ncomment = \"author of original lda and qda functions\",\nrole = c(\"ctb\",\"cph\")))",
  "Description": "Provides sampling and density functions for matrix variate\nnormal, t, and inverted t distributions; ML estimation for\nmatrix variate normal and t distributions using the EM\nalgorithm, including some restrictions on the parameters; and\nclassification by linear and quadratic discriminant analysis\nfor matrix variate normal and t distributions described in\nThompson et al. (2019) <doi:10.1080/10618600.2019.1696208>.\nPerforms clustering with matrix variate normal and t mixture\nmodels.",
  "VignetteBuilder": "knitr",
  "URL": "https://github.com/gzt/MixMatrix/,\nhttps://gzt.github.io/MixMatrix/",
  "BugReports": "https://github.com/gzt/MixMatrix/issues",
  "Language": "en-us",
  "License": "GPL-3",
  "RoxygenNote": "7.3.2",
  "Encoding": "UTF-8",
  "NeedsCompilation": "yes",
  "Packaged": {
    "Date": "2026-10-28 09:51:00 UTC",
    "User": "root"
  },
  "Author": "Geoffrey Thompson [aut, cre]\n(<https://orcid.org/0000-0003-2436-8822>), B. D. Ripley [ctb,\ncph] (author of original lda and qda functions), W. N. Venables\n[ctb, cph] (author of original lda and qda functions)",
  "Maintainer": "Geoffrey Thompson <gzthompson@gmail.com>",
  "Repository": "https://cran.r-universe.dev",
  "Date/Publication": "2024-10-01 03:07:59 UTC",
  "RemoteUrl": "https://github.com/cran/MixMatrix",
  "RemoteRef": "HEAD",
  "RemoteSha": "65280b620189afb503ee2019d28a9c45f449c9c3",
  "_user": "cran",
  "_type": "src",
  "_file": "MixMatrix_0.2.8.tar.gz",
  "_fileid": "https://r2.ropensci.org/5bdbfed7a2fa5060f37596c2e136f1b28bc7e0ee5f2186dd5e3b05d51ef03696",
  "_filesize": 451790,
  "_sha256": "5bdbfed7a2fa5060f37596c2e136f1b28bc7e0ee5f2186dd5e3b05d51ef03696",
  "_expires": "2027-02-05T10:19:08.000Z",
  "_created": "2026-10-28T09:51:00.000Z",
  "_published": "2026-10-29T07:31:45.872Z",
  "_upstream": "https://github.com/cran/MixMatrix",
  "_status": "success",
  "_maintainer": {
    "name": "Geoffrey Thompson",
    "email": "gzthompson@gmail.com",
    "login": "gzt",
    "description": "Data Scientist and Statistician. Interests: clustering, multivariate statistics, unsupervised learning, semisupervised learning. R, some C",
    "uuid": 2553342,
    "orcid": "0000-0003-2436-8822"
  },
  "_jobs": [
    {
      "job": 123319435387,
      "time": 229,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12807410503"
    },
    {
      "job": 123319436106,
      "time": 147,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12806792860"
    },
    {
      "job": 123319433644,
      "time": 116,
      "config": "linux-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12879878793"
    },
    {
      "job": 123319435501,
      "time": 287,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12807510490"
    },
    {
      "job": 123319434977,
      "time": 235,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12805624511"
    },
    {
      "job": 123319435348,
      "time": 123,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "12806797005"
    },
    {
      "job": 123319435617,
      "time": 249,
      "config": "windows-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12806039940"
    },
    {
      "job": 123319435797,
      "time": 1512,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12807933621"
    },
    {
      "job": 123319436102,
      "time": 272,
      "config": "windows-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12806499130"
    },
    {
      "job": 123319436305,
      "time": 1625,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12807479897"
    }
  ],
  "_buildurl": "https://github.com/r-universe/cran/actions/runs/40666991783",
  "_commit": {
    "id": "65280b620189afb503ee2019d28a9c45f449c9c3",
    "author": "Geoffrey Thompson <gzthompson@gmail.com>",
    "committer": "cran-robot <csardi.gabor+cran@gmail.com>",
    "message": "version 0.2.8\n",
    "time": 1727752079
  },
  "_distro": "resolute",
  "_host": "GitHub-Actions",
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.5.0",
      "role": "Depends"
    },
    {
      "package": "Rcpp",
      "role": "LinkingTo"
    },
    {
      "package": "RcppArmadillo",
      "role": "LinkingTo"
    },
    {
      "package": "stats",
      "role": "Imports"
    },
    {
      "package": "CholWishart",
      "role": "Imports"
    },
    {
      "package": "Rcpp",
      "role": "Imports"
    },
    {
      "package": "glue",
      "role": "Imports"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    },
    {
      "package": "testthat",
      "role": "Suggests"
    },
    {
      "package": "covr",
      "role": "Suggests"
    },
    {
      "package": "ggplot2",
      "role": "Suggests"
    },
    {
      "package": "dplyr",
      "role": "Suggests"
    },
    {
      "package": "magrittr",
      "role": "Suggests"
    },
    {
      "package": "spelling",
      "role": "Suggests"
    }
  ],
  "_owner": "cran",
  "_selfowned": false,
  "_usedby": 3,
  "_updates": [],
  "_tags": [],
  "_stars": 0,
  "_contributors": [
    {
      "user": "gzt",
      "count": 4,
      "uuid": 2553342
    }
  ],
  "_userbio": {
    "uuid": 6899542,
    "type": "organization",
    "name": "cran",
    "followers": 634,
    "description": "Unofficial read-only mirror of all CRAN R packages"
  },
  "_downloads": {
    "count": 380,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/MixMatrix"
  },
  "_devurl": "https://github.com/gzt/mixmatrix",
  "_pkgdown": "https://gzt.github.io/MixMatrix/",
  "_searchresults": 0,
  "_topics": [
    "openblas",
    "cpp",
    "openmp"
  ],
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/manual.pdf",
    "extra/MixMatrix.html",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md"
  ],
  "_homeurl": "https://github.com/gzt/mixmatrix",
  "_realowner": "gzt",
  "_cranurl": false,
  "_releases": [
    {
      "version": "0.2.2",
      "date": "2019-07-28"
    },
    {
      "version": "0.2.4",
      "date": "2019-11-14"
    },
    {
      "version": "0.2.6",
      "date": "2021-11-16"
    },
    {
      "version": "0.2.8",
      "date": "2024-09-30"
    }
  ],
  "_exports": [
    "ARgenerate",
    "CSgenerate",
    "dmatrixinvt",
    "dmatrixnorm",
    "dmatrixt",
    "init_matrixmixture",
    "matrixlda",
    "matrixmixture",
    "matrixqda",
    "MLmatrixnorm",
    "MLmatrixt",
    "rmatrixinvt",
    "rmatrixnorm",
    "rmatrixt"
  ],
  "_help": [
    {
      "page": "ARgenerate",
      "title": "Generate a unit AR(1) covariance matrix",
      "topics": [
        "ARgenerate"
      ]
    },
    {
      "page": "CSgenerate",
      "title": "Generate a compound symmetric correlation matrix",
      "topics": [
        "CSgenerate"
      ]
    },
    {
      "page": "init_matrixmixture",
      "title": "Initializing settings for Matrix Mixture Models",
      "topics": [
        "init_matrixmixture"
      ]
    },
    {
      "page": "matrixlda",
      "title": "LDA for matrix variate distributions",
      "topics": [
        "matrixlda"
      ]
    },
    {
      "page": "matrixmixture",
      "title": "Fit a matrix variate mixture model",
      "topics": [
        "matrixmixture"
      ]
    },
    {
      "page": "matrixqda",
      "title": "Quadratic Discriminant Analysis for Matrix Variate Observations",
      "topics": [
        "matrixqda"
      ]
    },
    {
      "page": "MLmatrixnorm",
      "title": "Maximum likelihood estimation for matrix normal distributions",
      "topics": [
        "MLmatrixnorm"
      ]
    },
    {
      "page": "MLmatrixt",
      "title": "Maximum likelihood estimation for matrix variate t distributions",
      "topics": [
        "MLmatrixt"
      ]
    },
    {
      "page": "predict.matrixlda",
      "title": "Classify Matrix Variate Observations by Linear Discrimination",
      "topics": [
        "predict.matrixlda"
      ]
    },
    {
      "page": "predict.matrixqda",
      "title": "Classify Matrix Variate Observations by Quadratic Discrimination",
      "topics": [
        "predict.matrixqda"
      ]
    },
    {
      "page": "rmatrixinvt",
      "title": "Distribution functions for matrix variate inverted t distributions",
      "topics": [
        "dmatrixinvt",
        "rmatrixinvt"
      ]
    },
    {
      "page": "rmatrixnorm",
      "title": "Matrix variate Normal distribution functions",
      "topics": [
        "dmatrixnorm",
        "rmatrixnorm"
      ]
    },
    {
      "page": "rmatrixt",
      "title": "Distribution functions for the matrix variate t distribution.",
      "topics": [
        "dmatrixt",
        "rmatrixt"
      ]
    }
  ],
  "_readme": "https://github.com/cran/MixMatrix/raw/HEAD/README.md",
  "_rundeps": [
    "CholWishart",
    "glue",
    "Rcpp",
    "RcppArmadillo"
  ],
  "_sysdeps": [
    {
      "shlib": "liblapack",
      "package": "libopenblas0-pthread",
      "source": "openblas",
      "version": "0.3.32+ds-5",
      "name": "openblas",
      "homepage": "https://www.openblas.net/",
      "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)"
    },
    {
      "shlib": "libblas",
      "package": "libopenblas0-pthread",
      "source": "openblas",
      "version": "0.3.32+ds-5",
      "name": "openblas",
      "homepage": "https://www.openblas.net/",
      "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)"
    },
    {
      "shlib": "libstdc++",
      "package": "libstdc++6",
      "source": "gcc",
      "version": "16-20260322-1ubuntu1",
      "name": "c++",
      "homepage": "http://gcc.gnu.org/",
      "description": "GNU Standard C++ Library v3"
    },
    {
      "shlib": "libgomp",
      "package": "libgomp1",
      "source": "gcc",
      "version": "16-20260322-1ubuntu1",
      "name": "openmp",
      "homepage": "http://gcc.gnu.org/",
      "description": "GCC OpenMP (GOMP) support library"
    }
  ],
  "_vignettes": [
    {
      "source": "discriminant-analysis.Rmd",
      "filename": "discriminant-analysis.html",
      "title": "Discriminant Analysis for Matrix Variate Distributions",
      "author": "Geoffrey Thompson",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Details of the modeling choices",
        "Classification Rule",
        "Matrix Variate Normal Populations",
        "Estimated Minimum ECM Rule for Two Matrix Variate Normal Populations",
        "How to classify based on this:",
        "If there are equal covariances:",
        "Generalizing to multiple classes",
        "Structure of the objects",
        "Session info",
        "All the code for easy copying"
      ],
      "created": "2019-07-28 07:20:05",
      "modified": "2024-10-01 03:07:59",
      "commits": 4
    },
    {
      "source": "matrixnormal.Rmd",
      "filename": "matrixnormal.html",
      "title": "Matrix Variate Normal Distributions with MixMatrix",
      "author": "Geoffrey Thompson",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Matrix Variate Distributions",
        "Matrix Variate Normal Distributions",
        "Parameter estimation for matrix variate normal distributions",
        "Session Information",
        "All the code for easy copying",
        "References"
      ],
      "created": "2019-07-28 07:20:05",
      "modified": "2024-10-01 03:07:59",
      "commits": 3
    },
    {
      "source": "matrix-t-estimation.Rmd",
      "filename": "matrix-t-estimation.html",
      "title": "ML estimation of the Matrix Variate t Distribution",
      "author": "Geoffrey Thompson",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Estimation of the Matrix Variate t Distribution",
        "E-step",
        "CM Steps",
        "Applications and results",
        "With $\\nu$ known",
        "With $\\nu$ unknown",
        "Use for classification",
        "Session info",
        "All the code for easy copying",
        "References"
      ],
      "created": "2019-07-28 07:20:05",
      "modified": "2024-10-01 03:07:59",
      "commits": 4
    },
    {
      "source": "mixturemodel.Rmd",
      "filename": "mixturemodel.html",
      "title": "Matrix Variate Mixture Models with the t distribution",
      "author": "Geoffrey Thompson",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Matrix Variate Mixture Modeling with the $t$ Distribution",
        "Usage",
        "matrixmixture function",
        "Initialization function",
        "Session Information",
        "All the code for easy copying",
        "References"
      ],
      "created": "2019-07-28 07:20:05",
      "modified": "2024-10-01 03:07:59",
      "commits": 3
    }
  ],
  "_score": 4.2552725051033065,
  "_indexed": false,
  "_nocasepkg": "mixmatrix",
  "_universes": [
    "cran"
  ],
  "_indexurl": "https://gzt.r-universe.dev/MixMatrix",
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.2.8",
      "date": "2026-10-28T09:55:01.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "65280b620189afb503ee2019d28a9c45f449c9c3",
      "fileid": "https://r2.ropensci.org/418459ebd0880fb370a8994a2a73adaaa408b8ef013323001d6b23beebbbfded",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40666991783"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.2.8",
      "date": "2026-10-28T09:53:28.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "65280b620189afb503ee2019d28a9c45f449c9c3",
      "fileid": "https://r2.ropensci.org/5c4fa9da280fd41fe45bd3ca46559c14ecf44a7d6fb376b23d5218c8171f586d",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40666991783"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "0.2.8",
      "date": "2026-10-29T07:29:06.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "65280b620189afb503ee2019d28a9c45f449c9c3",
      "fileid": "https://r2.ropensci.org/8b0bd9abc67fe45e0b135eec2b05e04c93b20075947d1ace1c6a0c1548d6e439",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40666991783"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "0.2.8",
      "date": "2026-10-28T09:55:51.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "65280b620189afb503ee2019d28a9c45f449c9c3",
      "fileid": "https://r2.ropensci.org/098257a73b02d4f0f6bb68f207a9bbcc0828cc709cd590afcd8551fc49f6e7f6",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40666991783"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "0.2.8",
      "date": "2026-10-28T09:53:27.000Z",
      "arch": "emscripten",
      "commit": "65280b620189afb503ee2019d28a9c45f449c9c3",
      "fileid": "https://r2.ropensci.org/88c3ebe1cbe2fd8d3e353a821ee2e7421f45a54ff801f021c2d7a6263840cfbd",
      "status": "success",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40666991783"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "0.2.8",
      "date": "2026-10-28T09:54:59.000Z",
      "arch": "aarch64",
      "commit": "65280b620189afb503ee2019d28a9c45f449c9c3",
      "fileid": "https://r2.ropensci.org/c55d569e6a8fe0b35b46986eaa061ad0c3f1e390f162b9ba53ee1c6e169a91f6",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40666991783"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "0.2.8",
      "date": "2026-10-28T10:14:11.000Z",
      "arch": "x86_64",
      "commit": "65280b620189afb503ee2019d28a9c45f449c9c3",
      "fileid": "https://r2.ropensci.org/9a25d7884d1df68a40fba054befa1d0ad058ac6b9b79ffd344785954a8d62fc9",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40666991783"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "0.2.8",
      "date": "2026-10-28T09:55:21.000Z",
      "arch": "aarch64",
      "commit": "65280b620189afb503ee2019d28a9c45f449c9c3",
      "fileid": "https://r2.ropensci.org/335c73968611cf07e89fcc9999a255abe696700beac3c024df196f746b597132",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40666991783"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "0.2.8",
      "date": "2026-10-28T10:16:39.000Z",
      "arch": "x86_64",
      "commit": "65280b620189afb503ee2019d28a9c45f449c9c3",
      "fileid": "https://r2.ropensci.org/180a47183e1bc9a22bcc00bfe73c7088bcc8dcf865a24ea737420fcadad35e36",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40666991783"
    }
  ]
}