{
  "_id": "6a0f6e09acfb0bcc41c5ed84",
  "Package": "carbondate",
  "Title": "Calibration and Summarisation of Radiocarbon Dates",
  "Version": "1.1.0.9000",
  "Authors@R": "c(\nperson(\"Timothy J\", \"Heaton\", , \"T.Heaton@leeds.ac.uk\", role = c(\"aut\", \"cre\", \"cph\"),\ncomment = c(ORCID = \"0000-0002-9994-142X\")),\nperson(\"Sara\", \"Al-assam\", , \"sarassam@gmail.com\", role = c(\"aut\", \"cph\"),\ncomment = c(ORCID = \"0000-0001-7280-6802\")))",
  "Description": "Performs Bayesian non-parametric calibration of multiple\nrelated radiocarbon determinations, and summarises the calendar\nage information to plot their joint calendar age density (see\nHeaton (2022) <doi:10.1111/rssc.12599>). Also models the\noccurrence of radiocarbon samples as a variable-rate\n(inhomogeneous) Poisson process, plotting the posterior\nestimate for the occurrence rate of the samples over calendar\ntime, and providing information about potential change points.",
  "License": "GPL (>= 3)",
  "Encoding": "UTF-8",
  "Roxygen": "list(markdown = TRUE)",
  "Config/testthat/edition": "3",
  "LazyData": "true",
  "URL": "https://github.com/TJHeaton/carbondate,\nhttps://tjheaton.github.io/carbondate/",
  "BugReports": "https://github.com/TJHeaton/carbondate/issues",
  "VignetteBuilder": "knitr",
  "RoxygenNote": "7.3.2",
  "Repository": "https://tjheaton.r-universe.dev",
  "Date/Publication": "2025-04-08 10:39:45 UTC",
  "RemoteUrl": "https://github.com/tjheaton/carbondate",
  "RemoteRef": "HEAD",
  "RemoteSha": "197ab4d640b880fe2076f8d637d30c3a675e344a",
  "NeedsCompilation": "yes",
  "Packaged": {
    "Date": "2026-05-21 07:55:36 UTC",
    "User": "root"
  },
  "Author": "Timothy J Heaton [aut, cre, cph] (ORCID:\n<https://orcid.org/0000-0002-9994-142X>),\nSara Al-assam [aut, cph] (ORCID:\n<https://orcid.org/0000-0001-7280-6802>)",
  "Maintainer": "Timothy J Heaton <T.Heaton@leeds.ac.uk>",
  "MD5sum": "58a484aca7d3229ba78b7789d63bfaa1",
  "_user": "tjheaton",
  "_type": "src",
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  "_created": "2026-05-21T07:55:36.000Z",
  "_published": "2026-05-21T20:41:45.267Z",
  "_distro": "noble",
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  "_buildurl": "https://github.com/r-universe/tjheaton/actions/runs/26212977685",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/tjheaton/carbondate",
  "_commit": {
    "id": "197ab4d640b880fe2076f8d637d30c3a675e344a",
    "author": "Tim Heaton <88681834+TJHeaton@users.noreply.github.com>",
    "committer": "GitHub <noreply@github.com>",
    "message": "Merge pull request #52 from TJHeaton/development\n\nFixing warning in find_predictive_density.cpp ",
    "time": 1744108785
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  "_maintainer": {
    "name": "Timothy J Heaton",
    "email": "t.heaton@leeds.ac.uk",
    "login": "tjheaton",
    "twitter": "@Heaton_T_J",
    "description": "I am an interdisciplinary statistician who works on radiocarbon dating at the interface of statistics, geoscience, and archaeology.",
    "uuid": 88681834,
    "orcid": "0000-0002-9994-142X"
  },
  "_registered": true,
  "_dependencies": [
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    {
      "package": "cpp11",
      "role": "LinkingTo"
    },
    {
      "package": "graphics",
      "role": "Imports"
    },
    {
      "package": "grDevices",
      "role": "Imports"
    },
    {
      "package": "stats",
      "role": "Imports"
    },
    {
      "package": "utils",
      "role": "Imports"
    },
    {
      "package": "knitr",
      "role": "Suggests"
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    {
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  "_selfowned": true,
  "_usedby": 0,
  "_updates": [],
  "_tags": [],
  "_stars": 5,
  "_contributors": [
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    "type": "user",
    "name": "Tim Heaton",
    "description": "I am an interdisciplinary statistician who works on radiocarbon dating at the interface of statistics, geoscience, and archaeology."
  },
  "_downloads": {
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    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/carbondate"
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  "_devurl": "https://github.com/tjheaton/carbondate",
  "_pkgdown": "https://tjheaton.github.io/carbondate/",
  "_searchresults": 36,
  "_topics": [
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  "_rbuild": "4.6.0",
  "_assets": [
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    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "manual.pdf"
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  "_homeurl": "https://github.com/tjheaton/carbondate",
  "_realowner": "tjheaton",
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  "_releases": [
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      "date": "2024-01-31"
    },
    {
      "version": "1.1.0",
      "date": "2025-04-08"
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  ],
  "_exports": [
    "CalibrateSingleDetermination",
    "FindPosteriorMeanRate",
    "FindPredictiveCalendarAgeDensity",
    "FindSummedProbabilityDistribution",
    "GenerateOxcalCode",
    "InterpolateCalibrationCurve",
    "PlotCalendarAgeDensityIndividualSample",
    "PlotConvergenceData",
    "PlotGelmanRubinDiagnosticMultiChain",
    "PlotGelmanRubinDiagnosticSingleChain",
    "PlotNumberOfClusters",
    "PlotNumberOfInternalChanges",
    "PlotPosteriorChangePoints",
    "PlotPosteriorHeights",
    "PlotPosteriorMeanRate",
    "PlotPredictiveCalendarAgeDensity",
    "PlotRateIndividualRealisation",
    "PolyaUrnBivarDirichlet",
    "PPcalibrate",
    "WalkerBivarDirichlet"
  ],
  "_datasets": [
    {
      "name": "alces",
      "title": "Example real-life data - Alces in Yukon and Alaska",
      "object": "alces",
      "class": [
        "data.frame"
      ],
      "fields": [
        "lab_code",
        "site_code",
        "location",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 58,
      "table": true,
      "tojson": true
    },
    {
      "name": "armit",
      "title": "Example real-life data - Population Decline in Iron Age Ireland",
      "object": "armit",
      "class": [
        "data.frame"
      ],
      "fields": [
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 2021,
      "table": true,
      "tojson": true
    },
    {
      "name": "bison",
      "title": "Example real-life data - Bison in Yukon and Alaska",
      "object": "bison",
      "class": [
        "data.frame"
      ],
      "fields": [
        "lab_code",
        "site_code",
        "location",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 64,
      "table": true,
      "tojson": true
    },
    {
      "name": "buchanan",
      "title": "Example real-life data - Palaeo-Indian demography",
      "object": "buchanan",
      "class": [
        "data.frame"
      ],
      "fields": [
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 628,
      "table": true,
      "tojson": true
    },
    {
      "name": "cervus",
      "title": "Example real-life data - Cervus in Yukon and Alaska",
      "object": "cervus",
      "class": [
        "data.frame"
      ],
      "fields": [
        "lab_code",
        "site_code",
        "location",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 63,
      "table": true,
      "tojson": true
    },
    {
      "name": "equus",
      "title": "Example real-life data - Equus in Yukon and Alaska",
      "object": "equus",
      "class": [
        "data.frame"
      ],
      "fields": [
        "lab_code",
        "site_code",
        "location",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 84,
      "table": true,
      "tojson": true
    },
    {
      "name": "human",
      "title": "Example real-life data - Humans in Yukon and Alaska",
      "object": "human",
      "class": [
        "data.frame"
      ],
      "fields": [
        "lab_code",
        "site_code",
        "location",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 46,
      "table": true,
      "tojson": true
    },
    {
      "name": "intcal04",
      "title": "IntCal04 calibration curve",
      "object": "intcal04",
      "class": [
        "data.frame"
      ],
      "fields": [
        "calendar_age_BP",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 3301,
      "table": true,
      "tojson": true
    },
    {
      "name": "intcal09",
      "title": "IntCal09 calibration curve",
      "object": "intcal09",
      "class": [
        "data.frame"
      ],
      "fields": [
        "calendar_age_BP",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 3521,
      "table": true,
      "tojson": true
    },
    {
      "name": "intcal13",
      "title": "IntCal13 calibration curve",
      "object": "intcal13",
      "class": [
        "data.frame"
      ],
      "fields": [
        "calendar_age_BP",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 5141,
      "table": true,
      "tojson": true
    },
    {
      "name": "intcal20",
      "title": "IntCal20 calibration curve",
      "object": "intcal20",
      "class": [
        "data.frame"
      ],
      "fields": [
        "calendar_age_BP",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 9501,
      "table": true,
      "tojson": true
    },
    {
      "name": "intcal98",
      "title": "IntCal98 calibration curve",
      "object": "intcal98",
      "class": [
        "data.frame"
      ],
      "fields": [
        "calendar_age_BP",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 1538,
      "table": true,
      "tojson": true
    },
    {
      "name": "kerr",
      "title": "Example real-life data - Irish Rath",
      "object": "kerr",
      "class": [
        "data.frame"
      ],
      "fields": [
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 255,
      "table": true,
      "tojson": true
    },
    {
      "name": "mammuthus",
      "title": "Example real-life data - Mammuthus in Yukon and Alaska",
      "object": "mammuthus",
      "class": [
        "data.frame"
      ],
      "fields": [
        "lab_code",
        "site_code",
        "location",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 117,
      "table": true,
      "tojson": true
    },
    {
      "name": "pp_uniform_phase",
      "title": "Example artificial data - Uniform Phase",
      "object": "pp_uniform_phase",
      "class": [
        "data.frame"
      ],
      "fields": [
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 40,
      "table": true,
      "tojson": true
    },
    {
      "name": "shcal04",
      "title": "SHCal04 calibration curve",
      "object": "shcal04",
      "class": [
        "data.frame"
      ],
      "fields": [
        "calendar_age_BP",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 2202,
      "table": true,
      "tojson": true
    },
    {
      "name": "shcal13",
      "title": "SHCal13 calibration curve",
      "object": "shcal13",
      "class": [
        "data.frame"
      ],
      "fields": [
        "calendar_age_BP",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 5141,
      "table": true,
      "tojson": true
    },
    {
      "name": "shcal20",
      "title": "SHCal20 calibration curve",
      "object": "shcal20",
      "class": [
        "data.frame"
      ],
      "fields": [
        "calendar_age_BP",
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 9501,
      "table": true,
      "tojson": true
    },
    {
      "name": "two_normals",
      "title": "Example artificial data - Mixture of Normal Phases",
      "object": "two_normals",
      "class": [
        "data.frame"
      ],
      "fields": [
        "c14_age",
        "c14_sig",
        "f14c",
        "f14c_sig"
      ],
      "rows": 50,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "alces",
      "title": "Example real-life data - Alces in Yukon and Alaska",
      "topics": [
        "alces"
      ]
    },
    {
      "page": "armit",
      "title": "Example real-life data - Population Decline in Iron Age Ireland",
      "topics": [
        "armit"
      ]
    },
    {
      "page": "bison",
      "title": "Example real-life data - Bison in Yukon and Alaska",
      "topics": [
        "bison"
      ]
    },
    {
      "page": "buchanan",
      "title": "Example real-life data - Palaeo-Indian demography",
      "topics": [
        "buchanan"
      ]
    },
    {
      "page": "CalibrateSingleDetermination",
      "title": "Calibrate a Single Radiocarbon Determination",
      "topics": [
        "CalibrateSingleDetermination"
      ]
    },
    {
      "page": "cervus",
      "title": "Example real-life data - Cervus in Yukon and Alaska",
      "topics": [
        "cervus"
      ]
    },
    {
      "page": "equus",
      "title": "Example real-life data - Equus in Yukon and Alaska",
      "topics": [
        "equus"
      ]
    },
    {
      "page": "FindPosteriorMeanRate",
      "title": "Find Posterior Mean Rate of Sample Occurrence for Poisson Process Model",
      "topics": [
        "FindPosteriorMeanRate"
      ]
    },
    {
      "page": "FindPredictiveCalendarAgeDensity",
      "title": "Find Predictive Estimate of Shared Calendar Age Density from Bayesian Non-Parametric DPMM Output",
      "topics": [
        "FindPredictiveCalendarAgeDensity"
      ]
    },
    {
      "page": "FindSummedProbabilityDistribution",
      "title": "Find the summed probability distribution (SPD) for a set of radiocarbon observations",
      "topics": [
        "FindSummedProbabilityDistribution"
      ]
    },
    {
      "page": "GenerateOxcalCode",
      "title": "Outputs code suitable for running in OxCal from a series of radiocarbon determinations",
      "topics": [
        "GenerateOxcalCode"
      ]
    },
    {
      "page": "human",
      "title": "Example real-life data - Humans in Yukon and Alaska",
      "topics": [
        "human"
      ]
    },
    {
      "page": "intcal04",
      "title": "IntCal04 calibration curve",
      "topics": [
        "intcal04"
      ]
    },
    {
      "page": "intcal09",
      "title": "IntCal09 calibration curve",
      "topics": [
        "intcal09"
      ]
    },
    {
      "page": "intcal13",
      "title": "IntCal13 calibration curve",
      "topics": [
        "intcal13"
      ]
    },
    {
      "page": "intcal20",
      "title": "IntCal20 calibration curve",
      "topics": [
        "intcal20"
      ]
    },
    {
      "page": "intcal98",
      "title": "IntCal98 calibration curve",
      "topics": [
        "intcal98"
      ]
    },
    {
      "page": "InterpolateCalibrationCurve",
      "title": "Interpolate a calibration curve at a set of calendar ages",
      "topics": [
        "InterpolateCalibrationCurve"
      ]
    },
    {
      "page": "kerr",
      "title": "Example real-life data - Irish Rath",
      "topics": [
        "kerr"
      ]
    },
    {
      "page": "mammuthus",
      "title": "Example real-life data - Mammuthus in Yukon and Alaska",
      "topics": [
        "mammuthus"
      ]
    },
    {
      "page": "PlotCalendarAgeDensityIndividualSample",
      "title": "Plot Posterior Calendar Age Estimate for an Individual Determination after Joint Calibration",
      "topics": [
        "PlotCalendarAgeDensityIndividualSample"
      ]
    },
    {
      "page": "PlotConvergenceData",
      "title": "Plot KL Divergence of Predictive Density to Assess Convergence of Bayesian Non-Parametric DPMM Sampler",
      "topics": [
        "PlotConvergenceData"
      ]
    },
    {
      "page": "PlotGelmanRubinDiagnosticMultiChain",
      "title": "Plot Histogram of the Gelman-Rubin Convergence Diagnostic for Multiple Independent MCMC Chains",
      "topics": [
        "PlotGelmanRubinDiagnosticMultiChain"
      ]
    },
    {
      "page": "PlotGelmanRubinDiagnosticSingleChain",
      "title": "Plot Histogram of the Gelman-Rubin Convergence Diagnostic for a Single MCMC Chain",
      "topics": [
        "PlotGelmanRubinDiagnosticSingleChain"
      ]
    },
    {
      "page": "PlotNumberOfClusters",
      "title": "Plot Number of Calendar Age Clusters Estimated in Bayesian Non-Parametric DPMM Output",
      "topics": [
        "PlotNumberOfClusters"
      ]
    },
    {
      "page": "PlotNumberOfInternalChanges",
      "title": "Plot Number of Changepoints in Rate of Sample Occurrence for Poisson Process Model",
      "topics": [
        "PlotNumberOfInternalChanges"
      ]
    },
    {
      "page": "PlotPosteriorChangePoints",
      "title": "Plot Calendar Ages of Changes in Rate of Sample Occurrence for Poisson Process Model",
      "topics": [
        "PlotPosteriorChangePoints"
      ]
    },
    {
      "page": "PlotPosteriorHeights",
      "title": "Plot Heights of Segments in Rate of Sample Occurrence for Poisson Process Model",
      "topics": [
        "PlotPosteriorHeights"
      ]
    },
    {
      "page": "PlotPosteriorMeanRate",
      "title": "Plot Posterior Mean Rate of Sample Occurrence for Poisson Process Model",
      "topics": [
        "PlotPosteriorMeanRate"
      ]
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