{
  "_id": "6ab224143d719c1f840896c9",
  "Package": "investr",
  "Type": "Package",
  "Title": "Inverse Estimation/Calibration Functions",
  "Version": "1.5.0",
  "Authors@R": "person(c(\"Brandon\", \"M.\"), family = \"Greenwell\",\nemail = \"greenwell.brandon@gmail.com\", role = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0002-8120-0084\"))",
  "Description": "Functions to facilitate inverse estimation (e.g.,\ncalibration) in linear, generalized linear, nonlinear, and\n(linear) mixed-effects models. A generic function is also\nprovided for plotting fitted regression models with or without\nconfidence/prediction bands that may be of use to the general\nuser. For a general overview of these methods, see Greenwell\nand Schubert Kabban (2014) <doi:10.32614/RJ-2014-009>.",
  "License": "GPL (>= 2)",
  "URL": "https://github.com/bgreenwell/investr,\nhttps://bgreenwell.github.io/investr/,\nhttps://bgreenwell.r-universe.dev/investr",
  "BugReports": "https://github.com/bgreenwell/investr/issues",
  "LazyData": "true",
  "RoxygenNote": "7.3.3",
  "VignetteBuilder": "knitr",
  "Encoding": "UTF-8",
  "Roxygen": "list(markdown = TRUE)",
  "Repository": "https://bgreenwell.r-universe.dev",
  "Date/Publication": "2026-07-24 01:09:16 UTC",
  "RemoteUrl": "https://github.com/bgreenwell/investr",
  "RemoteRef": "main",
  "RemoteSha": "4d5a70500f6e002f16c8e653b529f3cf000798dc",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-09-22 06:41:11 UTC",
    "User": "root"
  },
  "Author": "Brandon M. Greenwell [aut, cre] (ORCID:\n<https://orcid.org/0000-0002-8120-0084>)",
  "Maintainer": "Brandon M. Greenwell <greenwell.brandon@gmail.com>",
  "_user": "bgreenwell",
  "_type": "src",
  "_file": "investr_1.5.0.tar.gz",
  "_fileid": "https://r2.ropensci.org/2bcb7dbf67dbefda5848c81362d851b4e3ad7f5ab4710815342efd1067789244",
  "_filesize": 691863,
  "_sha256": "2bcb7dbf67dbefda5848c81362d851b4e3ad7f5ab4710815342efd1067789244",
  "_expires": "2026-12-31T06:45:38.000Z",
  "_created": "2026-09-22T06:41:11.000Z",
  "_published": "2026-09-22T06:45:40.473Z",
  "_jobs": [
    {
      "job": 106642818669,
      "time": 116,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "10680138864"
    },
    {
      "job": 106642818803,
      "time": 123,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "10680685883"
    },
    {
      "job": 106642818756,
      "time": 103,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "10680318424"
    },
    {
      "job": 106642818699,
      "time": 100,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "10680388142"
    },
    {
      "job": 106642233904,
      "time": 149,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "10680083531"
    },
    {
      "job": 106642818697,
      "time": 228,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "10680506345"
    },
    {
      "job": 106642818753,
      "time": 69,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "10679898928"
    },
    {
      "job": 106642818835,
      "time": 71,
      "config": "windows-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "10680855619"
    },
    {
      "job": 106642818709,
      "time": 113,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "10680228588"
    }
  ],
  "_host": "GitHub-Actions",
  "_buildurl": "https://github.com/r-universe/bgreenwell/actions/runs/35695757228",
  "_status": "success",
  "_upstream": "https://github.com/bgreenwell/investr",
  "_commit": {
    "id": "4d5a70500f6e002f16c8e653b529f3cf000798dc",
    "author": "Brandon Greenwell <greenwell.brandon@gmail.com>",
    "committer": "Brandon Greenwell <greenwell.brandon@gmail.com>",
    "message": "chore: restore 1.5.0 version/NEWS after merging devel forward\n\nMerging devel into main a second time (after devel had already been\nbumped to 1.5.0.9000 post-release) dragged the dev version number and\nan empty \"(development version)\" NEWS heading into main. Neither\nbelongs on main, which should always read as the actual 1.5.0 release.\n",
    "time": 1784855356
  },
  "_maintainer": {
    "name": "Brandon M. Greenwell",
    "email": "greenwell.brandon@gmail.com",
    "login": "bgreenwell",
    "linkedin": "in/brandon-greenwell-ph-d-90310b94",
    "twitter": "@bgreenwell8",
    "description": "Director, Responsible AI at 84.51° and Adjunct Instructor at the University of Cincinnati.",
    "uuid": 3777755,
    "orcid": "0000-0002-8120-0084"
  },
  "_distro": "resolute",
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.3.0",
      "role": "Depends"
    },
    {
      "package": "graphics",
      "role": "Imports"
    },
    {
      "package": "stats",
      "role": "Imports"
    },
    {
      "package": "utils",
      "role": "Imports"
    },
    {
      "package": "boot",
      "role": "Suggests"
    },
    {
      "package": "datasets",
      "role": "Suggests"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "MASS",
      "role": "Suggests"
    },
    {
      "package": "nlme",
      "role": "Suggests"
    },
    {
      "package": "survival",
      "role": "Suggests"
    },
    {
      "package": "tinytest",
      "role": "Suggests"
    }
  ],
  "_owner": "bgreenwell",
  "_selfowned": true,
  "_usedby": 2,
  "_updates": [
    {
      "week": "2026-29",
      "n": 2
    },
    {
      "week": "2026-30",
      "n": 2
    }
  ],
  "_tags": [
    {
      "name": "v1.5.0",
      "date": "2026-07-24"
    }
  ],
  "_topics": [
    "calibration",
    "inverse-estimation",
    "inverse-prediction",
    "regression"
  ],
  "_stars": 26,
  "_contributors": [
    {
      "user": "bgreenwell",
      "count": 315,
      "uuid": 3777755
    },
    {
      "user": "japhir",
      "count": 1,
      "uuid": 10659193
    }
  ],
  "_userbio": {
    "uuid": 3777755,
    "type": "user",
    "name": "Brandon Greenwell",
    "followers": 407,
    "description": "Director, Responsible AI at 84.51° and Adjunct Instructor at the University of Cincinnati."
  },
  "_downloads": {
    "count": 5194,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/investr"
  },
  "_mentions": 3,
  "_devurl": "https://github.com/bgreenwell/investr",
  "_pkgdown": "https://bgreenwell.github.io/investr/",
  "_searchresults": 197,
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/investr.html",
    "extra/manual.pdf",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md"
  ],
  "_homeurl": "https://github.com/bgreenwell/investr",
  "_realowner": "bgreenwell",
  "_cranurl": true,
  "_releases": [
    {
      "version": "1.0",
      "date": "2013-08-09"
    },
    {
      "version": "1.0.1",
      "date": "2014-04-19"
    },
    {
      "version": "1.1.0",
      "date": "2014-07-14"
    },
    {
      "version": "1.1.1",
      "date": "2014-09-09"
    },
    {
      "version": "1.1.2",
      "date": "2014-09-15"
    },
    {
      "version": "1.2.0",
      "date": "2014-12-23"
    },
    {
      "version": "1.2.1",
      "date": "2015-01-06"
    },
    {
      "version": "1.3.0",
      "date": "2015-03-25"
    },
    {
      "version": "1.4.0",
      "date": "2016-04-09"
    },
    {
      "version": "1.4.2",
      "date": "2022-03-31"
    }
  ],
  "_exports": [
    "calibrate",
    "invest",
    "plotFit",
    "predFit"
  ],
  "_datasets": [
    {
      "name": "arsenic",
      "title": "Concentrations of arsenic in water samples",
      "object": "arsenic",
      "class": [
        "data.frame"
      ],
      "fields": [
        "actual",
        "measured"
      ],
      "rows": 32,
      "table": true,
      "tojson": true
    },
    {
      "name": "beetle",
      "title": "Dobson's Beetle Data",
      "object": "beetle",
      "class": [
        "data.frame"
      ],
      "fields": [
        "ldose",
        "n",
        "y"
      ],
      "rows": 8,
      "table": true,
      "tojson": true
    },
    {
      "name": "bladder",
      "title": "Bladder volume data",
      "object": "bladder",
      "class": [
        "data.frame"
      ],
      "fields": [
        "subject",
        "HD",
        "volume"
      ],
      "rows": 184,
      "table": true,
      "tojson": true
    },
    {
      "name": "crystal",
      "title": "Crystal weight data",
      "object": "crystal",
      "class": [
        "data.frame"
      ],
      "fields": [
        "time",
        "weight"
      ],
      "rows": 14,
      "table": true,
      "tojson": true
    },
    {
      "name": "nasturtium",
      "title": "Bioassay on Nasturtium",
      "object": "nasturtium",
      "class": [
        "data.frame"
      ],
      "fields": [
        "conc",
        "weight"
      ],
      "rows": 42,
      "table": true,
      "tojson": true
    },
    {
      "name": "whisky",
      "title": "Whisky data",
      "object": "whisky",
      "class": [
        "data.frame"
      ],
      "fields": [
        "age",
        "proof"
      ],
      "rows": 10,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "arsenic",
      "title": "Concentrations of arsenic in water samples",
      "topics": [
        "arsenic"
      ]
    },
    {
      "page": "beetle",
      "title": "Dobson's Beetle Data",
      "topics": [
        "beetle"
      ]
    },
    {
      "page": "bladder",
      "title": "Bladder volume data",
      "topics": [
        "bladder"
      ]
    },
    {
      "page": "calibrate",
      "title": "Calibration for the simple linear regression model",
      "topics": [
        "calibrate",
        "calibrate.default",
        "calibrate.formula",
        "calibrate.lm",
        "print.calibrate"
      ]
    },
    {
      "page": "crystal",
      "title": "Crystal weight data",
      "topics": [
        "crystal"
      ]
    },
    {
      "page": "invest",
      "title": "Inverse estimation for linear, nonlinear, and generalized linear models",
      "topics": [
        "invest",
        "invest.glm",
        "invest.lm",
        "invest.lme",
        "invest.nls"
      ]
    },
    {
      "page": "invest.survfit",
      "title": "Inverse estimation for Kaplan-Meier survival curves",
      "topics": [
        "invest.Surv",
        "invest.survfit"
      ]
    },
    {
      "page": "nasturtium",
      "title": "Bioassay on Nasturtium",
      "topics": [
        "nasturtium"
      ]
    },
    {
      "page": "plot.bootCal",
      "title": "Plots method for bootstrap calibration",
      "topics": [
        "plot.bootCal"
      ]
    },
    {
      "page": "plotFit",
      "title": "Plotting fitted models",
      "topics": [
        "plotFit",
        "plotFit.default"
      ]
    },
    {
      "page": "predFit",
      "title": "Predictions from a Fitted Model",
      "topics": [
        "predFit",
        "predFit.default",
        "predFit.glm",
        "predFit.lm",
        "predFit.lme",
        "predFit.nls"
      ]
    },
    {
      "page": "whisky",
      "title": "Whisky data",
      "topics": [
        "whisky"
      ]
    }
  ],
  "_readme": "https://github.com/bgreenwell/investr/raw/main/README.md",
  "_rundeps": [],
  "_vignettes": [
    {
      "source": "introduction.Rnw",
      "filename": "introduction.pdf",
      "title": "Introduction",
      "engine": "knitr::knitr",
      "headings": [
        "investr: An R Package for Inverse Estimation"
      ],
      "created": "2016-01-07 15:40:22",
      "modified": "2026-07-24 01:06:53",
      "commits": 7
    }
  ],
  "_score": 8.680214024529,
  "_indexed": true,
  "_nocasepkg": "investr",
  "_universes": [
    "bgreenwell"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.5.0",
      "date": "2026-09-22T06:43:04.000Z",
      "distro": "resolute",
      "commit": "4d5a70500f6e002f16c8e653b529f3cf000798dc",
      "fileid": "https://r2.ropensci.org/ddb232b778172fa5dffaeb648e12ca29b56a36ad5093e58df19fcd0dad6e62ba",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/bgreenwell/actions/runs/35695757228"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.5.0",
      "date": "2026-09-22T06:43:09.000Z",
      "distro": "resolute",
      "commit": "4d5a70500f6e002f16c8e653b529f3cf000798dc",
      "fileid": "https://r2.ropensci.org/ea384234fa87e6b5508a8b49fedf1127f2879edbd3177d37a8d8c7c42d8435ae",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/bgreenwell/actions/runs/35695757228"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.5.0",
      "date": "2026-09-22T06:42:57.000Z",
      "commit": "4d5a70500f6e002f16c8e653b529f3cf000798dc",
      "fileid": "https://r2.ropensci.org/841a4353871000162a2884c4675a083527eb3b1c7bca0460f276edf8ea2b2a8f",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/bgreenwell/actions/runs/35695757228"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.5.0",
      "date": "2026-09-22T06:42:54.000Z",
      "commit": "4d5a70500f6e002f16c8e653b529f3cf000798dc",
      "fileid": "https://r2.ropensci.org/b5f5307f00db868313ba4c36a0736fb5d50ec1401c7707430d932dd785b086a8",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/bgreenwell/actions/runs/35695757228"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.5.0",
      "date": "2026-09-22T06:45:16.000Z",
      "commit": "4d5a70500f6e002f16c8e653b529f3cf000798dc",
      "fileid": "https://r2.ropensci.org/c6cb5789f321d54c26addf96604578fb5e9e61b2e933c55ae73875ae8efd4cce",
      "status": "success",
      "buildurl": "https://github.com/r-universe/bgreenwell/actions/runs/35695757228"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.5.0",
      "date": "2026-09-22T06:42:10.000Z",
      "commit": "4d5a70500f6e002f16c8e653b529f3cf000798dc",
      "fileid": "https://r2.ropensci.org/25d356c8462fcb57b8d19f4788420b1cf8ffd9b07721317dd16c8aa3e9e4b790",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/bgreenwell/actions/runs/35695757228"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.5.0",
      "date": "2026-09-22T06:42:13.000Z",
      "commit": "4d5a70500f6e002f16c8e653b529f3cf000798dc",
      "fileid": "https://r2.ropensci.org/56f6ef8d23b0bb6d38a52d3125d0da90513300c1ccb031d40a0550600da21099",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/bgreenwell/actions/runs/35695757228"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.5.0",
      "date": "2026-09-22T06:42:44.000Z",
      "commit": "4d5a70500f6e002f16c8e653b529f3cf000798dc",
      "fileid": "https://r2.ropensci.org/19dc92a114f3870be7df30e93fd44af817dfb29e03cd9ed59af81969a566d7fc",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/bgreenwell/actions/runs/35695757228"
    }
  ]
}