{
  "_id": "6a1f6a3bb401979e7342e4a3",
  "Package": "ZIM",
  "Title": "Zero-Inflated Models for Count Time Series with Excess Zeros",
  "Version": "1.1.2",
  "Authors@R": "c(\nperson(\"Ming\", \"Yang\", role = c(\"aut\", \"cre\"), email = \"hustyangming@gmail.com\"),\nperson(\"Gideon\", \"Zamba\", role = \"aut\"),\nperson(\"Joseph\", \"Cavanaugh\", role = \"aut\")\n)",
  "Description": "Analyze count time series with excess zeros. Two types of\nstatistical models are supported: Markov regression by Yang et\nal. (2013) <doi:10.1016/j.stamet.2013.02.001> and state-space\nmodels by Yang et al. (2015) <doi:10.1177/1471082X14535530>.\nThey are also known as observation-driven and parameter-driven\nmodels respectively in the time series literature. The\nfunctions used for Markov regression or observation-driven\nmodels can also be used to fit ordinary regression models with\nindependent data under the zero-inflated Poisson (ZIP) or\nzero-inflated negative binomial (ZINB) assumption. Besides, the\npackage contains some miscellaneous functions to compute\ndensity, distribution, quantile, and generate random numbers\nfrom ZIP and ZINB distributions.",
  "URL": "https://github.com/mingstat/ZIM, https://mingstat.github.io/ZIM/",
  "BugReports": "https://github.com/mingstat/ZIM/issues",
  "License": "GPL-3",
  "Encoding": "UTF-8",
  "RoxygenNote": "7.3.3",
  "VignetteBuilder": "knitr",
  "LazyData": "true",
  "Config/testthat/edition": "3",
  "Repository": "https://mingstat.r-universe.dev",
  "Date/Publication": "2026-06-02 23:29:07 UTC",
  "RemoteUrl": "https://github.com/mingstat/zim",
  "RemoteRef": "HEAD",
  "RemoteSha": "889ea8805b001e625d2b429f51a9020b587610e9",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-06-02 23:37:31 UTC",
    "User": "root"
  },
  "Author": "Ming Yang [aut, cre],\nGideon Zamba [aut],\nJoseph Cavanaugh [aut]",
  "Maintainer": "Ming Yang <hustyangming@gmail.com>",
  "MD5sum": "c3b75c5acb6e806ebf6ede1f44dda543",
  "_user": "mingstat",
  "_type": "src",
  "_file": "ZIM_1.1.2.tar.gz",
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  "_created": "2026-06-02T23:37:31.000Z",
  "_published": "2026-06-02T23:41:46.999Z",
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    "author": "Ming Yang <hustyangming@gmail.com>",
    "committer": "Ming Yang <hustyangming@gmail.com>",
    "message": "Add CRAN submission files and update .Rbuildignore\n",
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    "email": "hustyangming@gmail.com",
    "login": "mingstat",
    "description": "Statistician and Data Scientist\n",
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  "_selfowned": true,
  "_usedby": 0,
  "_updates": [
    {
      "week": "2026-23",
      "n": 5
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  ],
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  "_stars": 8,
  "_contributors": [
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      "uuid": 5520067
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  ],
  "_userbio": {
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    "type": "user",
    "name": "Ming Yang",
    "description": "Statistician and Data Scientist"
  },
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    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/ZIM"
  },
  "_mentions": 7,
  "_devurl": "https://github.com/mingstat/zim",
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  "_rbuild": "4.6.0",
  "_assets": [
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    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/readme.html",
    "extra/readme.md",
    "extra/ZIM.html",
    "manual.pdf"
  ],
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  "_realowner": "mingstat",
  "_cranurl": true,
  "_releases": [
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      "version": "1.0",
      "date": "2013-06-18"
    },
    {
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      "date": "2014-05-08"
    },
    {
      "version": "1.0.2",
      "date": "2014-10-06"
    },
    {
      "version": "1.0.3",
      "date": "2017-02-06"
    },
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      "date": "2018-08-28"
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    "dzim",
    "dzim.control",
    "dzim.filter",
    "dzim.fit",
    "dzim.plot",
    "dzim.sim",
    "dzim.smooth",
    "dzinb",
    "dzip",
    "pvalue",
    "pzinb",
    "pzip",
    "qzinb",
    "qzip",
    "rzinb",
    "rzip",
    "zim",
    "zim.control",
    "zim.fit"
  ],
  "_datasets": [
    {
      "name": "injury",
      "title": "Example: Injury Series from Occupational Health",
      "object": "injury",
      "class": [
        "ts"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "syph",
      "title": "Example: Syphilis Series",
      "object": "syph",
      "class": [
        "data.frame"
      ],
      "fields": [
        "year",
        "week",
        "a1",
        "a2",
        "a3",
        "a4",
        "a5",
        "a6",
        "a7",
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        "a25",
        "a26",
        "a27",
        "a28",
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        "a32",
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        "a40",
        "a41",
        "a42",
        "a43",
        "a44",
        "a45",
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        "a49",
        "a50",
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        "a52",
        "a53",
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        "a56",
        "a57",
        "a58",
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        "a60",
        "a61",
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        "a63",
        "a64",
        "a65",
        "a66",
        "a67"
      ],
      "rows": 209,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "ZIM-package",
      "title": "Zero-Inflated Models for Count Time Series with Excess Zeros",
      "topics": [
        "ZIM-package",
        "ZIM"
      ]
    },
    {
      "page": "bshift",
      "title": "Backshift Operator Apply the backshift operator or lag operator to a time series objective.",
      "topics": [
        "bshift"
      ]
    },
    {
      "page": "dzim",
      "title": "Fitting Dynamic Zero-Inflated Models",
      "topics": [
        "dzim"
      ]
    },
    {
      "page": "dzim.control",
      "title": "Auxiliary for Controlling DZIM Fitting",
      "topics": [
        "dzim.control"
      ]
    },
    {
      "page": "dzim.filter",
      "title": "Particle Filtering for DZIM",
      "topics": [
        "dzim.filter"
      ]
    },
    {
      "page": "dzim.fit",
      "title": "Fitter Function for Dynamic Zero-Inflated Models",
      "topics": [
        "dzim.fit"
      ]
    },
    {
      "page": "dzim.plot",
      "title": "Trace Plots from DZIM",
      "topics": [
        "dzim.plot"
      ]
    },
    {
      "page": "dzim.sim",
      "title": "Simulate Data from DZIM",
      "topics": [
        "dzim.sim"
      ]
    },
    {
      "page": "dzim.smooth",
      "title": "Particle Smoothing for DZIM",
      "topics": [
        "dzim.smooth"
      ]
    },
    {
      "page": "injury",
      "title": "Example: Injury Series from Occupational Health",
      "topics": [
        "injury"
      ]
    },
    {
      "page": "pvalue",
      "title": "Function to Compute P-value.",
      "topics": [
        "pvalue"
      ]
    },
    {
      "page": "syph",
      "title": "Example: Syphilis Series",
      "topics": [
        "syph"
      ]
    },
    {
      "page": "zim",
      "title": "Fitting Zero-Inflated Models",
      "topics": [
        "zim"
      ]
    },
    {
      "page": "zim.control",
      "title": "Auxiliary for Controlling ZIM Fitting",
      "topics": [
        "zim.control"
      ]
    },
    {
      "page": "zim.fit",
      "title": "Fitter Function for Zero-Inflated Models",
      "topics": [
        "zim.fit"
      ]
    },
    {
      "page": "dpqr-zinb",
      "title": "The Zero-Inflated Negative Binomial Distribution",
      "topics": [
        "dzinb",
        "pzinb",
        "qzinb",
        "rzinb",
        "ZINB"
      ]
    },
    {
      "page": "dpqr-zip",
      "title": "The Zero-Inflated Poisson Distribution",
      "topics": [
        "dzip",
        "pzip",
        "qzip",
        "rzip",
        "ZIP"
      ]
    }
  ],
  "_readme": "https://github.com/mingstat/zim/raw/HEAD/README.md",
  "_rundeps": [
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  ],
  "_vignettes": [
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      "source": "ZIM.Rmd",
      "filename": "ZIM.html",
      "title": "Introduction to ZIM",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Observation-Driven Models",
        "ZIP Autoregression",
        "ZINB Autoregression",
        "Parameter-Driven Models",
        "Dynamic ZIP Model",
        "Dynamic ZINB Model"
      ],
      "created": "2018-09-03 09:38:18",
      "modified": "2025-04-12 04:06:35",
      "commits": 10
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  "_nocasepkg": "zim",
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