{
  "_id": "6a34f6393efcd9bda43d3031",
  "Package": "pscl",
  "Version": "1.6.0",
  "Date": "2026-04-20",
  "Title": "Political Science Computational Laboratory",
  "Authors@R": "c(\nperson(\"Simon\", \"Jackman\",\nrole = c(\"aut\", \"cre\"),\nemail = \"simon.jackman@sydney.edu.au\",\ncomment = c(ORCID = \"0000-0001-7421-4034\")\n),\nperson(\"Alex\", \"Tahk\", role = c(\"ctb\"), comment = c(ORCID = \"0000-0001-7895-9420\")),\nperson(\"Achim\", \"Zeileis\", role = c(\"ctb\"), comment = c(ORCID = \"0000-0003-0918-3766\")),\nperson(\"Christina\", \"Maimone\", role = c(\"ctb\"), comment = c(ORCID = \"0000-0002-0402-6297\")),\nperson(\"James\", \"Fearon\", role = c(\"ctb\")),\nperson(\"Zoe\", \"Meers\", role = c(\"ctb\"), comment = c(ORCID = \"0000-0001-8045-6531\"))\n)",
  "Description": "Bayesian analysis of item-response theory (IRT) models,\nroll call analysis; computing highest density regions; maximum\nlikelihood estimation of zero-inflated and hurdle models for\ncount data; goodness-of-fit measures for GLMs; data sets used\nin writing and teaching; seats-votes curves.",
  "LazyData": "true",
  "License": "GPL-2",
  "URL": "https://github.com/atahk/pscl",
  "RoxygenNote": "7.3.0",
  "NeedsCompilation": "yes",
  "Repository": "https://atahk.r-universe.dev",
  "Date/Publication": "2026-04-20 11:08:37 UTC",
  "RemoteUrl": "https://github.com/atahk/pscl",
  "RemoteRef": "HEAD",
  "RemoteSha": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
  "Packaged": {
    "Date": "2026-06-19 07:49:59 UTC",
    "User": "root"
  },
  "Author": "Simon Jackman [aut, cre] (ORCID:\n<https://orcid.org/0000-0001-7421-4034>),\nAlex Tahk [ctb] (ORCID: <https://orcid.org/0000-0001-7895-9420>),\nAchim Zeileis [ctb] (ORCID: <https://orcid.org/0000-0003-0918-3766>),\nChristina Maimone [ctb] (ORCID:\n<https://orcid.org/0000-0002-0402-6297>),\nJames Fearon [ctb],\nZoe Meers [ctb] (ORCID: <https://orcid.org/0000-0001-8045-6531>)",
  "Maintainer": "Simon Jackman <simon.jackman@sydney.edu.au>",
  "MD5sum": "c6aeff40d14356d6c0122274d609f9ba",
  "_user": "atahk",
  "_type": "src",
  "_file": "pscl_1.6.0.tar.gz",
  "_fileid": "54e6e85283359d376c8ad4440c69f4a2264aeb018cbb4ddba196cb71903fd1cc",
  "_filesize": 3848442,
  "_sha256": "54e6e85283359d376c8ad4440c69f4a2264aeb018cbb4ddba196cb71903fd1cc",
  "_created": "2026-06-19T07:49:59.000Z",
  "_published": "2026-06-19T07:56:41.561Z",
  "_distro": "noble",
  "_jobs": [
    {
      "job": 82307166691,
      "time": 142,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "WARNING",
      "artifact": "7744468916"
    },
    {
      "job": 82307166715,
      "time": 149,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "WARNING",
      "artifact": "7744470244"
    },
    {
      "job": 82307166711,
      "time": 174,
      "config": "linux-release-arm64",
      "r": "4.6.0",
      "check": "WARNING",
      "artifact": "7744478444"
    },
    {
      "job": 82307166677,
      "time": 170,
      "config": "linux-release-x86_64",
      "r": "4.6.0",
      "check": "WARNING",
      "artifact": "7744476674"
    },
    {
      "job": 82307166749,
      "time": 195,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "7744485332"
    },
    {
      "job": 82307166705,
      "time": 330,
      "config": "macos-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "7744523910"
    },
    {
      "job": 82307166707,
      "time": 180,
      "config": "macos-release-arm64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7744475464"
    },
    {
      "job": 82307166727,
      "time": 223,
      "config": "macos-release-x86_64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7744489111"
    },
    {
      "job": 82306590661,
      "time": 243,
      "config": "source",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7744423764"
    },
    {
      "job": 82307166646,
      "time": 116,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7744460049"
    },
    {
      "job": 82307166662,
      "time": 133,
      "config": "windows-devel",
      "r": "4.7.0",
      "check": "WARNING",
      "artifact": "7744465400"
    },
    {
      "job": 82307166673,
      "time": 112,
      "config": "windows-oldrel",
      "r": "4.5.3",
      "check": "WARNING",
      "artifact": "7744458823"
    },
    {
      "job": 82307166712,
      "time": 126,
      "config": "windows-release",
      "r": "4.6.0",
      "check": "WARNING",
      "artifact": "7744462832"
    }
  ],
  "_buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/atahk/pscl",
  "_commit": {
    "id": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
    "author": "simonjackman <simonjackman@icloud.com>",
    "committer": "simonjackman <simonjackman@icloud.com>",
    "message": "multiple speed improvements\n",
    "time": 1776683317
  },
  "_maintainer": {
    "name": "Simon Jackman",
    "email": "simon.jackman@sydney.edu.au",
    "login": "simonjackman",
    "twitter": "@simonjackman",
    "description": "Political science, data science.   Author of Bayesian Analysis for the Social Sciences.        ",
    "uuid": 963653,
    "orcid": "0000-0001-7421-4034"
  },
  "_registered": true,
  "_dependencies": [
    {
      "package": "MASS",
      "role": "Imports"
    },
    {
      "package": "datasets",
      "role": "Imports"
    },
    {
      "package": "grDevices",
      "role": "Imports"
    },
    {
      "package": "graphics",
      "role": "Imports"
    },
    {
      "package": "stats",
      "role": "Imports"
    },
    {
      "package": "utils",
      "role": "Imports"
    },
    {
      "package": "lattice",
      "role": "Suggests"
    },
    {
      "package": "MCMCpack",
      "role": "Suggests"
    },
    {
      "package": "car",
      "role": "Suggests"
    },
    {
      "package": "lmtest",
      "role": "Suggests"
    },
    {
      "package": "sandwich",
      "role": "Suggests"
    },
    {
      "package": "zoo",
      "role": "Suggests"
    },
    {
      "package": "coda",
      "role": "Suggests"
    },
    {
      "package": "vcd",
      "role": "Suggests"
    },
    {
      "package": "mvtnorm",
      "role": "Suggests"
    },
    {
      "package": "mgcv",
      "role": "Suggests"
    }
  ],
  "_owner": "atahk",
  "_selfowned": true,
  "_usedby": 57,
  "_updates": [
    {
      "week": "2026-17",
      "n": 1
    }
  ],
  "_tags": [],
  "_stars": 73,
  "_contributors": [
    {
      "user": "atahk",
      "count": 27,
      "uuid": 7646890
    },
    {
      "user": "simonjackman",
      "count": 5,
      "uuid": 963653
    },
    {
      "user": "psolymos",
      "count": 2,
      "uuid": 831636
    },
    {
      "user": "lukaswallrich",
      "count": 1,
      "uuid": 60155545
    },
    {
      "user": "zmeers",
      "count": 1,
      "uuid": 26280637
    }
  ],
  "_userbio": {
    "uuid": 7646890,
    "type": "user",
    "name": "Alex Tahk",
    "followers": 31,
    "description": "Associate professor of Political Science at UW–Madison"
  },
  "_downloads": {
    "count": 37036,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/pscl"
  },
  "_mentions": 185,
  "_devurl": "https://github.com/atahk/pscl",
  "_searchresults": 4016,
  "_topics": [
    "openmp"
  ],
  "_rbuild": "4.6.0",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/pscl.html",
    "extra/readme.html",
    "extra/readme.md",
    "manual.pdf"
  ],
  "_homeurl": "https://github.com/atahk/pscl",
  "_realowner": "atahk",
  "_cranurl": true,
  "_releases": [
    {
      "version": "0.5",
      "date": "2005-05-31"
    },
    {
      "version": "0.51",
      "date": "2005-06-14"
    },
    {
      "version": "0.52",
      "date": "2005-09-06"
    },
    {
      "version": "0.54",
      "date": "2006-04-27"
    },
    {
      "version": "0.58",
      "date": "2006-07-12"
    },
    {
      "version": "0.59",
      "date": "2006-07-21"
    },
    {
      "version": "0.60",
      "date": "2006-08-03"
    },
    {
      "version": "0.61",
      "date": "2006-08-19"
    },
    {
      "version": "0.72",
      "date": "2006-10-25"
    },
    {
      "version": "0.73",
      "date": "2006-11-29"
    },
    {
      "version": "0.75",
      "date": "2007-01-25"
    },
    {
      "version": "0.91",
      "date": "2007-05-13"
    },
    {
      "version": "0.92",
      "date": "2007-05-16"
    },
    {
      "version": "0.94",
      "date": "2008-02-17"
    },
    {
      "version": "0.95",
      "date": "2008-03-20"
    },
    {
      "version": "0.96",
      "date": "2008-06-26"
    },
    {
      "version": "0.97",
      "date": "2008-07-16"
    },
    {
      "version": "1.00",
      "date": "2008-07-18"
    },
    {
      "version": "1.01",
      "date": "2008-10-12"
    },
    {
      "version": "1.02",
      "date": "2008-10-21"
    },
    {
      "version": "1.03",
      "date": "2009-01-27"
    },
    {
      "version": "1.03.2",
      "date": "2009-11-19"
    },
    {
      "version": "1.03.3",
      "date": "2010-01-19"
    },
    {
      "version": "1.03.4",
      "date": "2010-04-12"
    },
    {
      "version": "1.03.5",
      "date": "2010-04-13"
    },
    {
      "version": "1.03.6",
      "date": "2010-08-26"
    },
    {
      "version": "1.03.6.1",
      "date": "2011-03-21"
    },
    {
      "version": "1.03.10",
      "date": "2011-03-31"
    },
    {
      "version": "1.04",
      "date": "2011-10-15"
    },
    {
      "version": "1.04.1",
      "date": "2011-10-23"
    },
    {
      "version": "1.04.4",
      "date": "2012-06-13"
    },
    {
      "version": "1.4.6",
      "date": "2014-08-27"
    },
    {
      "version": "1.4.8",
      "date": "2015-01-24"
    },
    {
      "version": "1.4.9",
      "date": "2015-03-29"
    },
    {
      "version": "1.5.1",
      "date": "2017-08-30"
    },
    {
      "version": "1.5.2",
      "date": "2017-10-10"
    },
    {
      "version": "1.5.5",
      "date": "2020-03-07"
    },
    {
      "version": "1.5.5.1",
      "date": "2023-05-10"
    },
    {
      "version": "1.5.9",
      "date": "2024-01-31"
    }
  ],
  "_exports": [
    "betaHPD",
    "computeMargins",
    "constrain.items",
    "constrain.legis",
    "convertCodes",
    "densigamma",
    "dropRollCall",
    "dropUnanimous",
    "extractRollCallObject",
    "hitmiss",
    "hurdle",
    "hurdle.control",
    "hurdletest",
    "ideal",
    "idealToMCMC",
    "igammaHDR",
    "ntable",
    "odTest",
    "pigamma",
    "plot.ideal",
    "plot.predict.ideal",
    "plot.seatsVotes",
    "postProcess",
    "pR2",
    "predprob",
    "qigamma",
    "readKH",
    "rigamma",
    "rollcall",
    "seatsVotes",
    "simpi",
    "summary.rollcall",
    "tracex",
    "vectorRepresentation",
    "vuong",
    "zeroinfl",
    "zeroinfl.control"
  ],
  "_datasets": [
    {
      "name": "absentee",
      "title": "Absentee and Machine Ballots in Pennsylvania State Senate Races",
      "object": "absentee",
      "class": [
        "data.frame"
      ],
      "fields": [
        "year",
        "district",
        "absdem",
        "absrep",
        "machdem",
        "machrep",
        "dabs",
        "dmach"
      ],
      "rows": 22,
      "table": true,
      "tojson": true
    },
    {
      "name": "admit",
      "title": "Applications to a Political Science PhD Program",
      "object": "admit",
      "class": [
        "data.frame"
      ],
      "fields": [
        "score",
        "gre.quant",
        "gre.verbal",
        "ap",
        "pt",
        "female"
      ],
      "rows": 106,
      "table": true,
      "tojson": true
    },
    {
      "name": "AustralianElectionPolling",
      "title": "Political opinion polls in Australia, 2004-07",
      "object": "AustralianElectionPolling",
      "class": [
        "data.frame"
      ],
      "fields": [
        "ALP",
        "Lib",
        "Nat",
        "Green",
        "FamilyFirst",
        "Dems",
        "OneNation",
        "DK",
        "sampleSize",
        "org",
        "startDate",
        "endDate",
        "source",
        "remark"
      ],
      "rows": 239,
      "table": true,
      "tojson": true
    },
    {
      "name": "AustralianElections",
      "title": "elections to Australian House of Representatives, 1949-2016",
      "object": "AustralianElections",
      "class": [
        "data.frame"
      ],
      "fields": [
        "date",
        "Seats",
        "Uncontested",
        "ALPSeats",
        "LPSeats",
        "NPSeats",
        "OtherSeats",
        "ALP",
        "ALP2PP",
        "LP",
        "NP",
        "DLP",
        "Dem",
        "Green",
        "Hanson",
        "Com",
        "AP",
        "Informal",
        "Turnout"
      ],
      "rows": 27,
      "table": true,
      "tojson": true
    },
    {
      "name": "bioChemists",
      "title": "article production by graduate students in biochemistry Ph.D. programs",
      "object": "bioChemists",
      "class": [
        "data.frame"
      ],
      "fields": [
        "art",
        "fem",
        "mar",
        "kid5",
        "phd",
        "ment"
      ],
      "rows": 915,
      "table": true,
      "tojson": true
    },
    {
      "name": "ca2006",
      "title": "California Congressional Districts in 2006",
      "object": "ca2006",
      "class": [
        "data.frame"
      ],
      "fields": [
        "district",
        "D",
        "R",
        "Other",
        "IncParty",
        "IncName",
        "open",
        "contested",
        "Bush2004",
        "Kerry2004",
        "Other2004",
        "Bush2000",
        "Gore2000"
      ],
      "rows": 53,
      "table": true,
      "tojson": true
    },
    {
      "name": "EfronMorris",
      "title": "Batting Averages for 18 major league baseball players, 1970",
      "object": "EfronMorris",
      "class": [
        "data.frame"
      ],
      "fields": [
        "name",
        "team",
        "league",
        "r",
        "y",
        "n",
        "p"
      ],
      "rows": 18,
      "table": true,
      "tojson": true
    },
    {
      "name": "iraqVote",
      "title": "U.S. Senate vote on the use of force against Iraq, 2002.",
      "object": "iraqVote",
      "class": [
        "data.frame"
      ],
      "fields": [
        "y",
        "state.abb",
        "name",
        "rep",
        "state.name",
        "gorevote"
      ],
      "rows": 100,
      "table": true,
      "tojson": true
    },
    {
      "name": "nj07",
      "title": "rollcall object, National Journal key votes of 2007",
      "object": "nj07",
      "class": [
        "rollcall"
      ],
      "fields": [],
      "table": false,
      "tojson": false
    },
    {
      "name": "partycodes",
      "title": "political parties appearing in the U.S. Congress",
      "object": "partycodes",
      "class": [
        "list"
      ],
      "fields": [],
      "table": true,
      "tojson": true
    },
    {
      "name": "politicalInformation",
      "title": "Interviewer ratings of respondent levels of political information",
      "object": "politicalInformation",
      "class": [
        "data.frame"
      ],
      "fields": [
        "y",
        "collegeDegree",
        "female",
        "age",
        "homeOwn",
        "govt",
        "length",
        "id"
      ],
      "rows": 1807,
      "table": true,
      "tojson": true
    },
    {
      "name": "presidentialElections",
      "title": "elections for U.S. President, 1932-2016, by state",
      "object": "presidentialElections",
      "class": [
        "tbl_df",
        "tbl",
        "data.frame"
      ],
      "fields": [
        "state",
        "demVote",
        "year",
        "south"
      ],
      "rows": 1097,
      "table": true,
      "tojson": true
    },
    {
      "name": "prussian",
      "title": "Prussian army horse kick data",
      "object": "prussian",
      "class": [
        "data.frame"
      ],
      "fields": [
        "y",
        "year",
        "corp"
      ],
      "rows": 280,
      "table": true,
      "tojson": true
    },
    {
      "name": "RockTheVote",
      "title": "Voter turnout experiment, using Rock The Vote ads",
      "object": "RockTheVote",
      "class": [
        "data.frame"
      ],
      "fields": [
        "strata",
        "treated",
        "r",
        "n",
        "p",
        "treatedIndex"
      ],
      "rows": 85,
      "table": true,
      "tojson": true
    },
    {
      "name": "s109",
      "title": "rollcall object, 109th U.S. Senate (2005-06).",
      "object": "s109",
      "class": [
        "rollcall"
      ],
      "fields": [],
      "table": false,
      "tojson": false
    },
    {
      "name": "sc9497",
      "title": "votes from the United States Supreme Court, from 1994-1997",
      "object": "sc9497",
      "class": [
        "list"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "state.info",
      "title": "information about the American states needed for U.S. Congress",
      "object": "state.info",
      "class": [
        "list"
      ],
      "fields": [],
      "table": true,
      "tojson": true
    },
    {
      "name": "UKHouseOfCommons",
      "title": "1992 United Kingdom electoral returns",
      "object": "UKHouseOfCommons",
      "class": [
        "data.frame"
      ],
      "fields": [
        "constituency",
        "county",
        "y1",
        "y2",
        "y1lag",
        "y2lag",
        "coninc",
        "labinc",
        "libinc",
        "v1",
        "v2",
        "v3"
      ],
      "rows": 521,
      "table": true,
      "tojson": true
    },
    {
      "name": "unionDensity",
      "title": "cross national rates of trade union density",
      "object": "unionDensity",
      "class": [
        "data.frame"
      ],
      "fields": [
        "union",
        "left",
        "size",
        "concen"
      ],
      "rows": 20,
      "table": true,
      "tojson": true
    },
    {
      "name": "vote92",
      "title": "Reports of voting in the 1992 U.S. Presidential election.",
      "object": "vote92",
      "class": [
        "data.frame"
      ],
      "fields": [
        "vote",
        "dem",
        "rep",
        "female",
        "persfinance",
        "natlecon",
        "clintondis",
        "bushdis",
        "perotdis"
      ],
      "rows": 909,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "absentee",
      "title": "Absentee and Machine Ballots in Pennsylvania State Senate Races",
      "topics": [
        "absentee"
      ]
    },
    {
      "page": "admit",
      "title": "Applications to a Political Science PhD Program",
      "topics": [
        "admit"
      ]
    },
    {
      "page": "AustralianElectionPolling",
      "title": "Political opinion polls in Australia, 2004-07",
      "topics": [
        "AustralianElectionPolling"
      ]
    },
    {
      "page": "AustralianElections",
      "title": "elections to Australian House of Representatives, 1949-2016",
      "topics": [
        "AustralianElections"
      ]
    },
    {
      "page": "betaHPD",
      "title": "compute and optionally plot beta HDRs",
      "topics": [
        "betaHPD"
      ]
    },
    {
      "page": "bioChemists",
      "title": "article production by graduate students in biochemistry Ph.D. programs",
      "topics": [
        "bioChemists"
      ]
    },
    {
      "page": "ca2006",
      "title": "California Congressional Districts in 2006",
      "topics": [
        "ca2006"
      ]
    },
    {
      "page": "computeMargins",
      "title": "add information about voting outcomes to a rollcall object",
      "topics": [
        "computeMargins"
      ]
    },
    {
      "page": "constrain.items",
      "title": "constrain item parameters in analysis of roll call data",
      "topics": [
        "constrain.items"
      ]
    },
    {
      "page": "constrain.legis",
      "title": "constrain legislators' ideal points in analysis of roll call data",
      "topics": [
        "constrain.legis"
      ]
    },
    {
      "page": "convertCodes",
      "title": "convert entries in a rollcall matrix to binary form",
      "topics": [
        "convertCodes"
      ]
    },
    {
      "page": "dropRollCall",
      "title": "drop user-specified elements from a rollcall object",
      "topics": [
        "dropRollCall"
      ]
    },
    {
      "page": "dropUnanimous",
      "title": "drop unanimous votes from rollcall objects and matrices",
      "topics": [
        "dropUnanimous"
      ]
    },
    {
      "page": "EfronMorris",
      "title": "Batting Averages for 18 major league baseball players, 1970",
      "topics": [
        "EfronMorris"
      ]
    },
    {
      "page": "extractRollCallObject",
      "title": "return the roll call object used in fitting an ideal model",
      "topics": [
        "extractRollCallObject"
      ]
    },
    {
      "page": "hitmiss",
      "title": "Table of Actual Outcomes against Predicted Outcomes for discrete data models",
      "topics": [
        "hitmiss",
        "hitmiss.glm"
      ]
    },
    {
      "page": "hurdle",
      "title": "Hurdle Models for Count Data Regression",
      "topics": [
        "hurdle",
        "print.hurdle"
      ]
    },
    {
      "page": "hurdle.control",
      "title": "Control Parameters for Hurdle Count Data Regression",
      "topics": [
        "hurdle.control"
      ]
    },
    {
      "page": "hurdletest",
      "title": "Testing for the Presence of a Zero Hurdle",
      "topics": [
        "hurdletest"
      ]
    },
    {
      "page": "ideal",
      "title": "analysis of educational testing data and roll call data with IRT models, via Markov chain Monte Carlo methods",
      "topics": [
        "ideal"
      ]
    },
    {
      "page": "idealToMCMC",
      "title": "convert an object of class ideal to a coda MCMC object",
      "topics": [
        "idealToMCMC"
      ]
    },
    {
      "page": "igamma",
      "title": "inverse-Gamma distribution",
      "topics": [
        "densigamma",
        "igamma",
        "igammaHDR",
        "pigamma",
        "qigamma",
        "rigamma"
      ]
    },
    {
      "page": "iraqVote",
      "title": "U.S. Senate vote on the use of force against Iraq, 2002.",
      "topics": [
        "iraqVote"
      ]
    },
    {
      "page": "nj07",
      "title": "rollcall object, National Journal key votes of 2007",
      "topics": [
        "nj07"
      ]
    },
    {
      "page": "ntable",
      "title": "nicely formatted tables",
      "topics": [
        "ntable"
      ]
    },
    {
      "page": "odTest",
      "title": "likelihood ratio test for over-dispersion in count data",
      "topics": [
        "odTest"
      ]
    },
    {
      "page": "partycodes",
      "title": "political parties appearing in the U.S. Congress",
      "topics": [
        "partycodes"
      ]
    },
    {
      "page": "plot.ideal",
      "title": "plots an ideal object",
      "topics": [
        "plot.ideal",
        "plot1d",
        "plot2d"
      ]
    },
    {
      "page": "plot.predict.ideal",
      "title": "plot methods for predictions from ideal objects",
      "topics": [
        "plot.predict.ideal"
      ]
    },
    {
      "page": "plot.seatsVotes",
      "title": "plot seats-votes curves",
      "topics": [
        "plot.seatsVotes"
      ]
    },
    {
      "page": "politicalInformation",
      "title": "Interviewer ratings of respondent levels of political information",
      "topics": [
        "politicalInformation"
      ]
    },
    {
      "page": "postProcess",
      "title": "remap MCMC output via affine transformations",
      "topics": [
        "postProcess"
      ]
    },
    {
      "page": "pR2",
      "title": "compute various pseudo-R2 measures",
      "topics": [
        "pR2"
      ]
    },
    {
      "page": "predict.hurdle",
      "title": "Methods for hurdle Objects",
      "topics": [
        "coef.hurdle",
        "extractAIC.hurdle",
        "fitted.hurdle",
        "logLik.hurdle",
        "model.matrix.hurdle",
        "predict.hurdle",
        "predprob.hurdle",
        "print.summary.hurdle",
        "residuals.hurdle",
        "summary.hurdle",
        "terms.hurdle",
        "vcov.hurdle"
      ]
    },
    {
      "page": "predict.ideal",
      "title": "predicted probabilities from an ideal object",
      "topics": [
        "predict.ideal",
        "print.predict.ideal"
      ]
    },
    {
      "page": "predict.zeroinfl",
      "title": "Methods for zeroinfl Objects",
      "topics": [
        "coef.zeroinfl",
        "extractAIC.zeroinfl",
        "fitted.zeroinfl",
        "logLik.zeroinfl",
        "model.matrix.zeroinfl",
        "predict.zeroinfl",
        "predprob.zeroinfl",
        "print.summary.zeroinfl",
        "residuals.zeroinfl",
        "summary.zeroinfl",
        "terms.zeroinfl",
        "vcov.zeroinfl"
      ]
    },
    {
      "page": "predprob",
      "title": "compute predicted probabilities from fitted models",
      "topics": [
        "predprob"
      ]
    },
    {
      "page": "predprob.glm",
      "title": "Predicted Probabilities for GLM Fits",
      "topics": [
        "predprob.glm"
      ]
    },
    {
      "page": "predprob.ideal",
      "title": "predicted probabilities from fitting ideal to rollcall data",
      "topics": [
        "predprob.ideal"
      ]
    },
    {
      "page": "presidentialElections",
      "title": "elections for U.S. President, 1932-2016, by state",
      "topics": [
        "presidentialElections"
      ]
    },
    {
      "page": "prussian",
      "title": "Prussian army horse kick data",
      "topics": [
        "prussian"
      ]
    },
    {
      "page": "readKH",
      "title": "read roll call data in Poole-Rosenthal KH format",
      "topics": [
        "readKH"
      ]
    },
    {
      "page": "RockTheVote",
      "title": "Voter turnout experiment, using Rock The Vote ads",
      "topics": [
        "RockTheVote"
      ]
    },
    {
      "page": "rollcall",
      "title": "create an object of class rollcall",
      "topics": [
        "rollcall"
      ]
    },
    {
      "page": "s109",
      "title": "rollcall object, 109th U.S. Senate (2005-06).",
      "topics": [
        "s109"
      ]
    },
    {
      "page": "sc9497",
      "title": "votes from the United States Supreme Court, from 1994-1997",
      "topics": [
        "sc9497"
      ]
    },
    {
      "page": "seatsVotes",
      "title": "A class for creating seats-votes curves",
      "topics": [
        "seatsVotes"
      ]
    },
    {
      "page": "simpi",
      "title": "Monte Carlo estimate of pi (3.14159265...)",
      "topics": [
        "simpi"
      ]
    },
    {
      "page": "state.info",
      "title": "information about the American states needed for U.S. Congress",
      "topics": [
        "state.info"
      ]
    },
    {
      "page": "summary.ideal",
      "title": "summary of an ideal object",
      "topics": [
        "summary.ideal"
      ]
    },
    {
      "page": "summary.rollcall",
      "title": "summarize a rollcall object",
      "topics": [
        "print.summary.rollcall",
        "summary.rollcall"
      ]
    },
    {
      "page": "tracex",
      "title": "trace plot of MCMC iterates, posterior density of legislators' ideal points",
      "topics": [
        "tracex"
      ]
    },
    {
      "page": "UKHouseOfCommons",
      "title": "1992 United Kingdom electoral returns",
      "topics": [
        "UKHouseOfCommons"
      ]
    },
    {
      "page": "unionDensity",
      "title": "cross national rates of trade union density",
      "topics": [
        "unionDensity"
      ]
    },
    {
      "page": "vectorRepresentation",
      "title": "convert roll call matrix to series of vectors",
      "topics": [
        "vectorRepresentation"
      ]
    },
    {
      "page": "vote92",
      "title": "Reports of voting in the 1992 U.S. Presidential election.",
      "topics": [
        "vote92"
      ]
    },
    {
      "page": "vuong",
      "title": "Vuong's non-nested hypothesis test",
      "topics": [
        "vuong"
      ]
    },
    {
      "page": "zeroinfl",
      "title": "Zero-inflated Count Data Regression",
      "topics": [
        "print.zeroinfl",
        "zeroinfl"
      ]
    },
    {
      "page": "zeroinfl.control",
      "title": "Control Parameters for Zero-inflated Count Data Regression",
      "topics": [
        "zeroinfl.control"
      ]
    }
  ],
  "_readme": "https://github.com/atahk/pscl/raw/HEAD/README.md",
  "_rundeps": [
    "MASS"
  ],
  "_sysdeps": [
    {
      "shlib": "libgomp",
      "package": "libgomp1",
      "source": "gcc",
      "version": "14.2.0-4ubuntu2~24.04.1",
      "name": "openmp",
      "homepage": "http://gcc.gnu.org/",
      "description": "GCC OpenMP (GOMP) support library"
    }
  ],
  "_vignettes": [
    {
      "source": "countreg.Rnw",
      "filename": "countreg.pdf",
      "title": "Regression Models for Count Data in R",
      "engine": "utils::Sweave",
      "headings": [
        "Introduction",
        "Models and software",
        "Application and illustrations",
        "Summary",
        "Technical details for hurdle models",
        "Technical details for zero-inflated models",
        "Methods for fitted zero-inflated and hurdle models",
        "Replication of textbook results"
      ],
      "created": "2017-05-04 14:10:23",
      "modified": "2026-04-20 11:08:37",
      "commits": 4
    }
  ],
  "_score": 13.569766745738827,
  "_indexed": true,
  "_nocasepkg": "pscl",
  "_universes": [
    "atahk",
    "simonjackman"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.6.0",
      "date": "2026-06-19T07:52:23.000Z",
      "distro": "noble",
      "arch": "aarch64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "c0b6f98f60691a666460a2c283174210959ddc76f3ac748783d564ae17d7445d",
      "status": "success",
      "check": "WARNING",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.6.0",
      "date": "2026-06-19T07:52:22.000Z",
      "distro": "noble",
      "arch": "x86_64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "7e95677b45e1c953b2c9cfd5884e0290c5f1de4f8edf2ee7d35b1dbe13d2c6bf",
      "status": "success",
      "check": "WARNING",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "1.6.0",
      "date": "2026-06-19T07:52:57.000Z",
      "distro": "noble",
      "arch": "aarch64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "91dd043b9d31ce6d95d0fd3554958b2f79a294ee79b0c1c8ea434581d6bd9f39",
      "status": "success",
      "check": "WARNING",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "1.6.0",
      "date": "2026-06-19T07:52:47.000Z",
      "distro": "noble",
      "arch": "x86_64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "46d0516aa15c97ecd5df04c423385c870b502102b9dfd5b41afb719b6d1832c5",
      "status": "success",
      "check": "WARNING",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.6.0",
      "date": "2026-06-19T07:53:21.000Z",
      "arch": "aarch64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "c641854b9cccbd514016212fc7338e2f8253edc24f6532450681742452070b3f",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.6.0",
      "date": "2026-06-19T07:55:00.000Z",
      "arch": "x86_64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "2caf368a0d3363d3ec1053b1881fe42ff14012ddad20a84a9d1cfd6b5ee6c435",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.6.0",
      "os": "mac",
      "version": "1.6.0",
      "date": "2026-06-19T07:52:48.000Z",
      "arch": "aarch64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "6ea72a0e0d5472c9b1774c79d921d321dc5cff8dbe43662189eb71ebbff6daff",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.6.0",
      "os": "mac",
      "version": "1.6.0",
      "date": "2026-06-19T07:53:13.000Z",
      "arch": "x86_64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "4af7190a7f57f45553b72679721e7e1e3869d6aa41554cefe0843fa5e41ab6fa",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.6.0",
      "date": "2026-06-19T07:52:21.000Z",
      "arch": "emscripten",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "65da21dbf3d61f004530ebfe98e158fad6879c1908b9cfdc3b1f966a2324830f",
      "status": "success",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.6.0",
      "date": "2026-06-19T07:51:29.000Z",
      "arch": "x86_64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "f723351d3ced69d71fa411c4197f8ae8b00e4918f63f3c47f5894a8f29ae659f",
      "status": "success",
      "check": "WARNING",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.6.0",
      "date": "2026-06-19T07:51:25.000Z",
      "arch": "x86_64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "f8c29d0470a804bcfb3a91089563d2a7aa0457f39a75c75076f5d65b29393236",
      "status": "success",
      "check": "WARNING",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    },
    {
      "r": "4.6.0",
      "os": "win",
      "version": "1.6.0",
      "date": "2026-06-19T07:51:31.000Z",
      "arch": "x86_64",
      "commit": "dd72d8e2359ffc393d5644e14b6a467a49febb5b",
      "fileid": "43830979058581623bbbe69b2dc821fa06ca5a25e3343ba846e74d40689e8002",
      "status": "success",
      "check": "WARNING",
      "buildurl": "https://github.com/r-universe/atahk/actions/runs/27812719338"
    }
  ]
}