{
  "_id": "6a632fe5d3420cf5dfdb85a1",
  "Package": "L1pack",
  "Type": "Package",
  "Title": "Routines for L1 Estimation",
  "Version": "0.62-4",
  "Date": "2026-02-18",
  "Authors@R": "c(person(\"Felipe\", \"Osorio\", role = c(\"aut\", \"cre\"),\nemail = \"faosorios.stat@gmail.com\",\ncomment = c(ORCID = \"0000-0002-4675-5201\")),\nperson(\"Tymoteusz\", \"Wolodzko\", role = \"aut\"))",
  "Maintainer": "Felipe Osorio <faosorios.stat@gmail.com>",
  "Description": "L1 estimation for linear regression using Barrodale and\nRoberts' method <doi:10.1145/355616.361024> and the EM\nalgorithm <doi:10.1023/A:1020759012226>. Estimation of mean and\ncovariance matrix using the multivariate Laplace distribution,\ndensity, distribution function, quantile function and random\nnumber generation for univariate and multivariate Laplace\ndistribution <doi:10.1080/03610929808832115>. Implementation of\nNaik and Plungpongpun <doi:10.1007/0-8176-4487-3_7> for the\nGeneralized spatial median estimator is included.",
  "License": "GPL-3",
  "URL": "https://github.com/faosorios/L1pack",
  "NeedsCompilation": "yes",
  "LazyLoad": "yes",
  "Repository": "https://faosorios.r-universe.dev",
  "Date/Publication": "2026-02-27 17:36:10 UTC",
  "RemoteUrl": "https://github.com/faosorios/l1pack",
  "RemoteRef": "HEAD",
  "RemoteSha": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
  "Packaged": {
    "Date": "2026-07-24 07:33:46 UTC",
    "User": "root"
  },
  "Author": "Felipe Osorio [aut, cre] (ORCID:\n<https://orcid.org/0000-0002-4675-5201>),\nTymoteusz Wolodzko [aut]",
  "_user": "faosorios",
  "_type": "src",
  "_file": "L1pack_0.62-4.tar.gz",
  "_fileid": "https://r2.ropensci.org/09f495549e32910b061fede6dac12a13a974c5be0f7186f8576451c70191b994",
  "_filesize": 280443,
  "_sha256": "09f495549e32910b061fede6dac12a13a974c5be0f7186f8576451c70191b994",
  "_expires": "2026-11-01T09:27:00.000Z",
  "_created": "2026-07-24T07:33:46.000Z",
  "_published": "2026-07-24T09:27:01.664Z",
  "_jobs": [
    {
      "job": 89426429249,
      "time": 91,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "8589851518"
    },
    {
      "job": 89426429230,
      "time": 99,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "8589853935"
    },
    {
      "job": 89426429268,
      "time": 93,
      "config": "linux-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8589852795"
    },
    {
      "job": 89426429300,
      "time": 106,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8589857081"
    },
    {
      "job": 89426429283,
      "time": 215,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "8592119374"
    },
    {
      "job": 89426429280,
      "time": 160,
      "config": "macos-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "8592277933"
    },
    {
      "job": 89426429271,
      "time": 154,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8592095654"
    },
    {
      "job": 89426429274,
      "time": 129,
      "config": "macos-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8592391840"
    },
    {
      "job": 89425820525,
      "time": 208,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8589817307"
    },
    {
      "job": 89426429214,
      "time": 104,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "8589855874"
    },
    {
      "job": 89426429266,
      "time": 96,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "8589853716"
    },
    {
      "job": 89426429289,
      "time": 76,
      "config": "windows-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "8589845946"
    },
    {
      "job": 89426429264,
      "time": 74,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8589845625"
    }
  ],
  "_host": "GitHub-Actions",
  "_buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664",
  "_status": "success",
  "_upstream": "https://github.com/faosorios/l1pack",
  "_commit": {
    "id": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
    "author": "Felipe Osorio <faosorios@gmail.com>",
    "committer": "GitHub <noreply@github.com>",
    "message": "Add files via upload",
    "time": 1772213770
  },
  "_maintainer": {
    "name": "Felipe Osorio",
    "email": "faosorios.stat@gmail.com",
    "orcid": "0000-0002-4675-5201"
  },
  "_distro": "resolute",
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.5.0",
      "role": "Depends"
    },
    {
      "package": "fastmatrix",
      "role": "Depends"
    },
    {
      "package": "fastmatrix",
      "role": "LinkingTo"
    },
    {
      "package": "stats",
      "role": "Imports"
    },
    {
      "package": "grDevices",
      "role": "Imports"
    },
    {
      "package": "graphics",
      "role": "Imports"
    }
  ],
  "_owner": "faosorios",
  "_selfowned": true,
  "_usedby": 4,
  "_updates": [
    {
      "week": "2025-52",
      "n": 1
    },
    {
      "week": "2026-03",
      "n": 6
    },
    {
      "week": "2026-09",
      "n": 9
    }
  ],
  "_tags": [],
  "_topics": [
    "envelope",
    "generalized-spatial-median",
    "l1-regression",
    "lad-regression",
    "laplace-distribution",
    "multivariate-laplace",
    "wilson-hilferty-transformation"
  ],
  "_stars": 6,
  "_contributors": [
    {
      "user": "faosorios",
      "count": 90,
      "uuid": 2903348
    }
  ],
  "_userbio": {
    "uuid": 2903348,
    "type": "user",
    "name": "Felipe Osorio",
    "followers": 60,
    "description": "Applied Statistician"
  },
  "_downloads": {
    "count": 917,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/L1pack"
  },
  "_mentions": 1,
  "_devurl": "https://github.com/faosorios/l1pack",
  "_searchresults": 447,
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/L1pack.html",
    "extra/readme.html",
    "extra/readme.md",
    "manual.pdf"
  ],
  "_homeurl": "https://github.com/faosorios/l1pack",
  "_realowner": "faosorios",
  "_cranurl": true,
  "_releases": [
    {
      "version": "0.3",
      "date": "2015-04-13"
    },
    {
      "version": "0.38",
      "date": "2017-02-20"
    },
    {
      "version": "0.38.1",
      "date": "2017-08-15"
    },
    {
      "version": "0.38.19",
      "date": "2017-11-14"
    },
    {
      "version": "0.38.196",
      "date": "2020-10-15"
    },
    {
      "version": "0.40",
      "date": "2022-04-21"
    },
    {
      "version": "0.41",
      "date": "2022-08-15"
    },
    {
      "version": "0.41-2",
      "date": "2022-10-19"
    },
    {
      "version": "0.41-24",
      "date": "2023-05-19"
    },
    {
      "version": "0.41-245",
      "date": "2024-04-23"
    },
    {
      "version": "0.50",
      "date": "2024-09-08"
    },
    {
      "version": "0.52",
      "date": "2025-03-18"
    },
    {
      "version": "0.60",
      "date": "2025-07-08"
    },
    {
      "version": "0.62",
      "date": "2026-01-15"
    },
    {
      "version": "0.62-4",
      "date": "2026-02-18"
    }
  ],
  "_exports": [
    "dlaplace",
    "dmLaplace",
    "envelope.Laplace",
    "l1ccc",
    "l1fit",
    "lad",
    "lad.fit",
    "lad.fit.BR",
    "lad.fit.EM",
    "LaplaceFit",
    "plaplace",
    "qlaplace",
    "rlaplace",
    "rmLaplace",
    "simulate.lad",
    "spatial.median",
    "WH.Laplace"
  ],
  "_datasets": [
    {
      "name": "ereturns",
      "title": "Excess returns for Martin Marietta and American Can companies",
      "object": "ereturns",
      "file": "ereturns.rda",
      "class": [
        "data.frame"
      ],
      "fields": [
        "Date",
        "am.can",
        "m.marietta",
        "CRSP"
      ],
      "rows": 60,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "confint.lad",
      "title": "Confidence intervals from 'lad' models",
      "topics": [
        "confint.lad"
      ]
    },
    {
      "page": "envelope",
      "title": "QQ-plot with simulated envelopes",
      "topics": [
        "envelope.Laplace"
      ]
    },
    {
      "page": "ereturns",
      "title": "Excess returns for Martin Marietta and American Can companies",
      "topics": [
        "ereturns"
      ]
    },
    {
      "page": "l1ccc",
      "title": "L1 concordance correlation coefficient",
      "topics": [
        "l1ccc"
      ]
    },
    {
      "page": "l1fit",
      "title": "Minimum absolute residual (L1) regression",
      "topics": [
        "l1fit"
      ]
    },
    {
      "page": "lad",
      "title": "Least absolute deviations regression",
      "topics": [
        "lad"
      ]
    },
    {
      "page": "lad.fit",
      "title": "Fitter functions for least absolute deviation (LAD) regression",
      "topics": [
        "lad.fit"
      ]
    },
    {
      "page": "lad.fit-methods",
      "title": "Fit a least absolute deviation (LAD) regression model",
      "topics": [
        "lad.fit.BR",
        "lad.fit.EM"
      ]
    },
    {
      "page": "Laplace",
      "title": "The symmetric Laplace distribution",
      "topics": [
        "dlaplace",
        "Laplace",
        "plaplace",
        "qlaplace",
        "rlaplace"
      ]
    },
    {
      "page": "LaplaceFit",
      "title": "Estimation of location and scatter using the multivariate Laplace distribution",
      "topics": [
        "LaplaceFit"
      ]
    },
    {
      "page": "mLaplace",
      "title": "Multivariate Laplace distribution",
      "topics": [
        "dmLaplace",
        "mLaplace",
        "rmLaplace"
      ]
    },
    {
      "page": "residuals.lad",
      "title": "Residuals for LAD regression",
      "topics": [
        "residuals.lad"
      ]
    },
    {
      "page": "simulate.lad",
      "title": "Simulate responses from 'lad' models",
      "topics": [
        "simulate.lad"
      ]
    },
    {
      "page": "spatial.median",
      "title": "Computation of the generalized spatial median",
      "topics": [
        "spatial.median"
      ]
    },
    {
      "page": "vcov.lad",
      "title": "Calculate variance-covariance matrix from 'lad' models",
      "topics": [
        "vcov.lad"
      ]
    },
    {
      "page": "wilson.hilferty",
      "title": "Wilson-Hilferty transformation",
      "topics": [
        "WH.Laplace"
      ]
    }
  ],
  "_readme": "https://github.com/faosorios/l1pack/raw/HEAD/README.md",
  "_rundeps": [
    "fastmatrix"
  ],
  "_score": 6.683731278618886,
  "_indexed": true,
  "_nocasepkg": "l1pack",
  "_universes": [
    "faosorios"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.62-4",
      "date": "2026-07-24T07:35:30.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/d9b0a60cc9f43bca4216497d57c2b894c7714a7fa48566b3045bef37b4033c59",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.62-4",
      "date": "2026-07-24T07:35:33.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/f0f574d419d2fd96593027ac75457f9056b560d0c0908d9eb16c1beb4c60edf3",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "0.62-4",
      "date": "2026-07-24T07:35:34.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/81d36a3a7f230804b6b1c6f52c3facc7837efebc9b0db9fb3b4db986e7c42293",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "0.62-4",
      "date": "2026-07-24T07:35:41.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/f49bbabeb0f65a8d9459703de4e56b3cdd9982f5525b7c1c57d85dcf6565512d",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "0.62-4",
      "date": "2026-07-24T09:14:42.000Z",
      "arch": "aarch64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/8ab3830df2b54675b752e0d57e0148b8cadfe21a542336f5eda97d4d8a60852d",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "0.62-4",
      "date": "2026-07-24T09:21:15.000Z",
      "arch": "x86_64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/2d5cf13dc09f420e5e2d48e5cab2558b99129899a6283adc2e0bd7d76fc4a5c3",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "0.62-4",
      "date": "2026-07-24T09:13:45.000Z",
      "arch": "aarch64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/5146efabc21cb2a15070d9c0dbd5d727dd7b762cee3549bfa06efd23b5af5a74",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "0.62-4",
      "date": "2026-07-24T09:26:14.000Z",
      "arch": "x86_64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/43fc73da158f2222538c576c0f462c0f3204be0e5c3234e0c9d50694c4538ddd",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "0.62-4",
      "date": "2026-07-24T07:35:47.000Z",
      "arch": "emscripten",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/a2a88a663d28fec95ccdc343add25fd397305dbb6ba72f3d185414cbfc23cb24",
      "status": "success",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "0.62-4",
      "date": "2026-07-24T07:35:10.000Z",
      "arch": "x86_64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/54480480e3785f22104a42141a9777ffc390b4680116b67ee3e245074fcdb2c2",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "0.62-4",
      "date": "2026-07-24T07:34:51.000Z",
      "arch": "x86_64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/a8cc0d0c745c76730ebaf6d618bcf2f419ee3353cd4fcd88cc6bf11d2eb9edae",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "0.62-4",
      "date": "2026-07-24T07:34:52.000Z",
      "arch": "x86_64",
      "commit": "2670bc3f510a92a585b7a9f6b5540380a93e2a40",
      "fileid": "https://r2.ropensci.org/7fe527cc866c2e881448b292c4598abe839b5a81d92ba3541f39a93391807c36",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/faosorios/actions/runs/30075677664"
    }
  ]
}