{
  "_id": "6a17fd3dacfb0bcc41daa9b5",
  "Package": "MaxentVariableSelection",
  "Type": "Package",
  "Title": "Selecting the Best Set of Relevant Environmental Variables along\nwith the Optimal Regularization Multiplier for Maxent Niche\nModeling",
  "Version": "1.0-3",
  "Date": "2018-01-23",
  "Author": "Alexander Jueterbock",
  "Maintainer": "\"Alexander Jueterbock\" <Alexander-Jueterbock@web.de>",
  "Description": "Complex niche models show low performance in identifying\nthe most important range-limiting environmental variables and\nin transferring habitat suitability to novel environmental\nconditions (Warren and Seifert, 2011 <DOI:10.1890/10-1171.1>;\nWarren et al., 2014 <DOI:10.1111/ddi.12160>). This package\nhelps to identify the most important set of uncorrelated\nvariables and to fine-tune Maxent's regularization multiplier.\nIn combination, this allows to constrain complexity and\nincrease performance of Maxent niche models (assessed by\ninformation criteria, such as AICc (Akaike, 1974\n<DOI:10.1109/TAC.1974.1100705>), and by the area under the\nreceiver operating characteristic (AUC) (Fielding and Bell,\n1997 <DOI:10.1017/S0376892997000088>). Users of this package\nshould be familiar with Maxent niche modelling.",
  "License": "GPL (>= 2)",
  "VignetteBuilder": "knitr",
  "SystemRequirements": "maxent.jar file",
  "Packaged": {
    "Date": "2026-05-28 08:27:49 UTC",
    "User": "root"
  },
  "RoxygenNote": "6.0.1",
  "Config/pak/sysreqs": "libgdal-dev gdal-bin libgeos-dev libproj-dev\nlibsqlite3-dev",
  "Repository": "https://alj1983.r-universe.dev",
  "Date/Publication": "2018-10-19 18:13:16 UTC",
  "RemoteUrl": "https://github.com/alj1983/maxentvariableselection",
  "RemoteRef": "HEAD",
  "RemoteSha": "355e1676f59d3197d897ed70039d2c82ca19ff98",
  "NeedsCompilation": "no",
  "MD5sum": "88a7515374d5ee005207c7ecc085a0ad",
  "_user": "alj1983",
  "_type": "src",
  "_file": "MaxentVariableSelection_1.0-3.tar.gz",
  "_fileid": "2077de48de383c54b87f5f118fcf0b542483b1d2819f23cdb00efc1c46c6e77b",
  "_filesize": 1125253,
  "_sha256": "2077de48de383c54b87f5f118fcf0b542483b1d2819f23cdb00efc1c46c6e77b",
  "_created": "2026-05-28T08:27:49.000Z",
  "_published": "2026-05-28T08:30:53.537Z",
  "_distro": "noble",
  "_jobs": [
    {
      "job": 78252825344,
      "time": 127,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "NOTE",
      "artifact": "7261237250"
    },
    {
      "job": 78252825291,
      "time": 136,
      "config": "linux-release-x86_64",
      "r": "4.6.0",
      "check": "NOTE",
      "artifact": "7261240142"
    },
    {
      "job": 78252825255,
      "time": 144,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "NOTE",
      "artifact": "7261233467"
    },
    {
      "job": 78252825340,
      "time": 123,
      "config": "macos-release-arm64",
      "r": "4.6.0",
      "check": "NOTE",
      "artifact": "7261230135"
    },
    {
      "job": 78252271144,
      "time": 207,
      "config": "source",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7261193184"
    },
    {
      "job": 78252825253,
      "time": 132,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7261238610"
    },
    {
      "job": 78252825333,
      "time": 144,
      "config": "windows-devel",
      "r": "4.7.0",
      "check": "NOTE",
      "artifact": "7261242958"
    },
    {
      "job": 78252825311,
      "time": 94,
      "config": "windows-oldrel",
      "r": "4.5.3",
      "check": "NOTE",
      "artifact": "7261226040"
    },
    {
      "job": 78252825280,
      "time": 86,
      "config": "windows-release",
      "r": "4.6.0",
      "check": "NOTE",
      "artifact": "7261223507"
    }
  ],
  "_buildurl": "https://github.com/r-universe/alj1983/actions/runs/26563525996",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/alj1983/maxentvariableselection",
  "_commit": {
    "id": "355e1676f59d3197d897ed70039d2c82ca19ff98",
    "author": "Alexander Jueterbock <Alexander-Jueterbock@web.de>",
    "committer": "Alexander Jueterbock <Alexander-Jueterbock@web.de>",
    "message": "Added license file\n",
    "time": 1539972796
  },
  "_maintainer": {
    "name": "\"Alexander Jueterbock\"",
    "email": "alexander-jueterbock@web.de",
    "login": "alj1983",
    "description": "",
    "uuid": 10420334
  },
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.1.2",
      "role": "Depends"
    },
    {
      "package": "ggplot2",
      "role": "Imports"
    },
    {
      "package": "raster",
      "role": "Imports"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    }
  ],
  "_owner": "alj1983",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [],
  "_tags": [],
  "_stars": 3,
  "_contributors": [
    {
      "user": "alj1983",
      "count": 50,
      "uuid": 10420334
    }
  ],
  "_userbio": {
    "uuid": 10420334,
    "type": "user",
    "name": "Alexander Jueterbock"
  },
  "_downloads": {
    "count": 176,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/MaxentVariableSelection"
  },
  "_mentions": 13,
  "_devurl": "https://github.com/alj1983/maxentvariableselection",
  "_searchresults": 11,
  "_rbuild": "4.6.0",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/MaxentVariableSelection.html",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "manual.pdf"
  ],
  "_homeurl": "https://github.com/alj1983/maxentvariableselection",
  "_realowner": "alj1983",
  "_cranurl": true,
  "_releases": [
    {
      "version": "1.0-0",
      "date": "2015-09-22"
    },
    {
      "version": "1.0-1",
      "date": "2016-03-31"
    },
    {
      "version": "1.0-2",
      "date": "2016-04-02"
    },
    {
      "version": "1.0-3",
      "date": "2018-01-23"
    }
  ],
  "_exports": [
    "VariableSelection"
  ],
  "_help": [
    {
      "page": "MaxentVariableSelection-package",
      "title": "Selecting the Best Set of Relevant Environmental Variables along with the Optimal Regularization Multiplier for Maxent Niche Modeling",
      "topics": [
        "MaxentVariableSelection"
      ]
    },
    {
      "page": "Backgrounddata",
      "title": "CSV file with background/pseudoabsence data",
      "topics": [
        "Backgrounddata"
      ]
    },
    {
      "page": "Occurrencedata",
      "title": "CSV file with occurrence data",
      "topics": [
        "Occurrencedata"
      ]
    },
    {
      "page": "VariableSelection",
      "title": "Selecting the best set of relevant environmental variables along with the optimal regularization multiplier for Maxent Niche Modeling",
      "topics": [
        "VariableSelection"
      ]
    }
  ],
  "_readme": "https://github.com/alj1983/maxentvariableselection/raw/HEAD/README.md",
  "_rundeps": [
    "cli",
    "cpp11",
    "farver",
    "ggplot2",
    "glue",
    "gtable",
    "isoband",
    "labeling",
    "lattice",
    "lifecycle",
    "R6",
    "raster",
    "RColorBrewer",
    "Rcpp",
    "rlang",
    "S7",
    "scales",
    "sp",
    "terra",
    "vctrs",
    "viridisLite",
    "withr"
  ],
  "_vignettes": [
    {
      "source": "MaxentVariableSelection.Rmd",
      "filename": "MaxentVariableSelection.pdf",
      "title": "'MaxentVariableSelection' vignette",
      "author": "Alexander Jueterbock",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Citation",
        "Introduction",
        "Requirements and input data",
        "ASCII Grids of environmental variables",
        "Maxent jar file",
        "Files of occurrence and background locations",
        "Workflow tutorial",
        "maxent",
        "outdir",
        "gridfolder",
        "occurrencelocations",
        "backgroundlocations",
        "additionalargs",
        "contributionthreshold",
        "correlationthreshold",
        "betamultiplier",
        "Variable selection procedure",
        "Result files",
        "References"
      ],
      "created": "2015-09-01 17:56:27",
      "modified": "2018-01-20 20:24:13",
      "commits": 9
    }
  ],
  "_score": 5.217483944213907,
  "_indexed": true,
  "_nocasepkg": "maxentvariableselection",
  "_universes": [
    "alj1983"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.0-3",
      "date": "2026-05-28T08:29:58.000Z",
      "distro": "noble",
      "commit": "355e1676f59d3197d897ed70039d2c82ca19ff98",
      "fileid": "7ef7518f42d4169ef3f421cb63421198c3dac52eb90beca2390141ed5041febb",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/alj1983/actions/runs/26563525996"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "1.0-3",
      "date": "2026-05-28T08:30:06.000Z",
      "distro": "noble",
      "commit": "355e1676f59d3197d897ed70039d2c82ca19ff98",
      "fileid": "14030bbd4d090cc6c0f04b2bcdfc9723b28377439736eea27e093bb9d1f5f395",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/alj1983/actions/runs/26563525996"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.0-3",
      "date": "2026-05-28T08:29:52.000Z",
      "commit": "355e1676f59d3197d897ed70039d2c82ca19ff98",
      "fileid": "d3c1c9e768a49248955b80087a07016adf4e90a449205763ce0f121fd23ca392",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/alj1983/actions/runs/26563525996"
    },
    {
      "r": "4.6.0",
      "os": "mac",
      "version": "1.0-3",
      "date": "2026-05-28T08:29:43.000Z",
      "commit": "355e1676f59d3197d897ed70039d2c82ca19ff98",
      "fileid": "4a0f916eb9c44db2e0f96c233776926cf064484d54ad8971ff474c673af44b41",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/alj1983/actions/runs/26563525996"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.0-3",
      "date": "2026-05-28T08:30:17.000Z",
      "commit": "355e1676f59d3197d897ed70039d2c82ca19ff98",
      "fileid": "bf0f4375c9058949e1787bbb3aa520b345ff2ca917a3a0d99c10bf42ac3e5c7a",
      "status": "success",
      "buildurl": "https://github.com/r-universe/alj1983/actions/runs/26563525996"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.0-3",
      "date": "2026-05-28T08:30:08.000Z",
      "commit": "355e1676f59d3197d897ed70039d2c82ca19ff98",
      "fileid": "36642fdfe0cd8c8cfe710b006e85e5c6f2b10338771f316da5299fc07d1f4d7e",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/alj1983/actions/runs/26563525996"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.0-3",
      "date": "2026-05-28T08:29:23.000Z",
      "commit": "355e1676f59d3197d897ed70039d2c82ca19ff98",
      "fileid": "b48d78ade0a1d6985c7ad5da8bab128432c511054b4d7ea56bd8f37707857fa7",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/alj1983/actions/runs/26563525996"
    },
    {
      "r": "4.6.0",
      "os": "win",
      "version": "1.0-3",
      "date": "2026-05-28T08:29:13.000Z",
      "commit": "355e1676f59d3197d897ed70039d2c82ca19ff98",
      "fileid": "efe182d8ec5633f5ccc447df7da52f3966a0615871a7873a94631f3851608751",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/alj1983/actions/runs/26563525996"
    }
  ]
}