{
  "_id": "6a10377aacfb0bcc41c9a722",
  "Package": "EVI",
  "Title": "Epidemic Volatility Index as an Early-Warning Tool",
  "Version": "0.2.0-0",
  "Date": "2023-11-30",
  "Authors@R": "c(\nperson(given = \"Eletherios\",\nfamily = \"Meletis\",\nrole = c(\"aut\"),\nemail = \"emeletis@outlook.com\"),\nperson(given = \"Konstantinos\",\nfamily = \"Pateras\",\nrole = c(\"aut\", \"cre\"),\nemail = \"kostas.pateras@gmail.com\"),\nperson(given = \"Paolo\",\nfamily = \"Eusebi\",\nrole = c(\"aut\"),\nemail = \"paoloeusebi@gmail.com\"),\nperson(given = \"Matt\",\nfamily = \"Denwood\",\nrole = c(\"aut\"),\nemail = \"md@sund.ku.dk\"),\nperson(given = \"Polychronis\",\nfamily = \"Kostoulas\",\nrole = c(\"aut\"),\nemail = \"pkost@uth.gr\")\n)",
  "Description": "This is an R package implementing the epidemic volatility\nindex (EVI), as discussed by Kostoulas et. al. (2021) and\nvariations by Pateras et. al. (2023). EVI is a new,\nconceptually simple, early warning tool for oncoming epidemic\nwaves. EVI is based on the volatility of newly reported cases\nper unit of time, ideally per day, and issues an early warning\nwhen the volatility change rate exceeds a threshold.",
  "URL": "https://www.nature.com/articles/s41598-021-02622-3",
  "License": "GPL (>= 3)",
  "Encoding": "UTF-8",
  "RoxygenNote": "7.2.1",
  "Config/testthat/edition": "3",
  "VignetteBuilder": "knitr",
  "Language": "en-US",
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  "Packaged": {
    "Date": "2026-05-12 06:22:24 UTC",
    "User": "root"
  },
  "Author": "Eletherios Meletis [aut], Konstantinos Pateras [aut, cre],\nPaolo Eusebi [aut], Matt Denwood [aut], Polychronis Kostoulas\n[aut]",
  "Maintainer": "Konstantinos Pateras <kostas.pateras@gmail.com>",
  "Repository": "https://kpatera.r-universe.dev",
  "Date/Publication": "2023-12-06 02:38:06 UTC",
  "RemoteUrl": "https://github.com/cran/EVI",
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  "_created": "2026-05-12T06:22:24.000Z",
  "_published": "2026-05-22T11:01:14.212Z",
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    "name": "Konstantinos Pateras",
    "email": "kostas.pateras@gmail.com",
    "login": "kpatera",
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  "_selfowned": true,
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  "_updates": [],
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  "_stars": 0,
  "_contributors": [
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      "uuid": 13434235
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  "_userbio": {
    "uuid": 63882794,
    "type": "user",
    "name": "Konstantinos Pateras",
    "description": "Research Consultant, Department of Public and One Health, University of Thessaly, and Department of Statistics, Athens University of Economics and Business"
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    "count": 211,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/EVI"
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  "_searchresults": 7,
  "_rbuild": "4.6.0",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/EVI.html",
    "extra/readme.html",
    "extra/readme.md",
    "manual.pdf"
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  "_realowner": "kpatera",
  "_cranurl": false,
  "_releases": [
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      "version": "0.1.1-4",
      "date": "2022-03-30"
    },
    {
      "version": "0.2.0-0",
      "date": "2023-12-05"
    }
  ],
  "_exports": [
    "cEVI_fun",
    "deviant",
    "deviant_update",
    "evi",
    "evi.graphs",
    "evifcut",
    "evirlap",
    "indic",
    "medvol",
    "mova",
    "rollsd",
    "status"
  ],
  "_datasets": [
    {
      "name": "Austria",
      "title": "Cases of the first 149 days of the Covid-19 pandemic in Austria.",
      "object": "Austria",
      "file": "Austria.rda",
      "class": [
        "tbl_df",
        "tbl",
        "data.frame"
      ],
      "fields": [
        "Date",
        "Cases",
        "Cum_Cases"
      ],
      "rows": 149,
      "table": true,
      "tojson": true
    },
    {
      "name": "Italy",
      "title": "Cases of the first 149 days of the Covid-19 pandemic in Italy.",
      "object": "Italy",
      "file": "Italy.rda",
      "class": [
        "data.frame"
      ],
      "fields": [
        "Date",
        "Cases",
        "Cum_Cases"
      ],
      "rows": 149,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "Austria",
      "title": "Cases of the first 149 days of the Covid-19 pandemic in Austria.",
      "topics": [
        "Austria"
      ]
    },
    {
      "page": "cEVI_fun",
      "title": "Calculation of the convergence Epidemic Volatility Index",
      "topics": [
        "cEVI_fun"
      ]
    },
    {
      "page": "deviant",
      "title": "This function produces the Epidemic Volatility Index based output data (beta)",
      "topics": [
        "deviant"
      ]
    },
    {
      "page": "deviant_update",
      "title": "This function is used after first running the deviant function",
      "topics": [
        "deviant_update"
      ]
    },
    {
      "page": "evi",
      "title": "Calculation of the Epidemic Volatility Index",
      "topics": [
        "evi"
      ]
    },
    {
      "page": "evi.graphs",
      "title": "This function produces plots of the time series data with the EVI predictions.",
      "topics": [
        "evi.graphs"
      ]
    },
    {
      "page": "evifcut",
      "title": "Sensitivity-Specificity estimation for each cut-off value and rolling window size",
      "topics": [
        "evifcut"
      ]
    },
    {
      "page": "evirlap",
      "title": "Combining multiple epidemic volatility indices into a multi-early warning index plot",
      "topics": [
        "evirlap"
      ]
    },
    {
      "page": "indic",
      "title": "Issue of an Early Warning",
      "topics": [
        "indic"
      ]
    },
    {
      "page": "Italy",
      "title": "Cases of the first 149 days of the Covid-19 pandemic in Italy.",
      "topics": [
        "Italy"
      ]
    },
    {
      "page": "medvol",
      "title": "Function that calculates the standard deviation",
      "topics": [
        "medvol"
      ]
    },
    {
      "page": "mova",
      "title": "Function that calculates the moving average of a time series",
      "topics": [
        "mova"
      ]
    },
    {
      "page": "rollsd",
      "title": "Rolling standard deviation",
      "topics": [
        "rollsd"
      ]
    },
    {
      "page": "status",
      "title": "A function that defines the true status based on the case definition",
      "topics": [
        "status"
      ]
    }
  ],
  "_readme": "https://github.com/cran/EVI/raw/HEAD/README.md",
  "_rundeps": [
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    "cowplot",
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    "farver",
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    "vctrs",
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    "withr"
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      "filename": "EVI.html",
      "title": "EVI",
      "engine": "knitr::rmarkdown",
      "headings": [],
      "created": "2022-03-30 17:00:06",
      "modified": "2023-12-06 02:38:06",
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  "_indexed": true,
  "_nocasepkg": "evi",
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