{
  "_id": "6ac77c32de46216d5edd0a90",
  "Package": "lemna",
  "Title": "Lemna Ecotox Effect Model",
  "Version": "1.0.3",
  "Authors@R": "c(\nperson(\"Nils\", \"Kehrein\", , \"nils.kehrein@gmail.com\", c(\"aut\", \"cre\")),\nperson(\"SETAC Europe IG Effect Modeling\", role=\"ccp\")\n)",
  "Description": "The reference implementation of model equations and\ndefault parameters for the toxicokinetic-toxicodynamic (TKTD)\nmodel of the Lemna (duckweed) aquatic plant. Lemna is a\nstandard test macrophyte used in ecotox effect studies. The\nmodel was described and published by the SETAC Europe Interest\nGroup Effect Modeling. It is a refined description of the Lemna\nTKTD model published by Schmitt et al. (2013)\n<doi:10.1016/j.ecolmodel.2013.01.017>.",
  "URL": "https://github.com/nkehrein/lemna",
  "BugReports": "https://github.com/nkehrein/lemna/issues",
  "License": "MIT + file LICENSE",
  "Encoding": "UTF-8",
  "LazyData": "true",
  "Roxygen": "list(markdown = TRUE, roclets = c(\"collate\", \"namespace\",\n\"rd\", \"roxyglobals::global_roclet\"))",
  "RoxygenNote": "7.3.2",
  "Config/testthat/edition": "3",
  "VignetteBuilder": "knitr",
  "Config/roxyglobals/filename": "globals.R",
  "Config/roxyglobals/unique": "FALSE",
  "Repository": "https://nkehrein.r-universe.dev",
  "Date/Publication": "2025-09-12 14:29:42 UTC",
  "RemoteUrl": "https://github.com/nkehrein/lemna",
  "RemoteRef": "HEAD",
  "RemoteSha": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
  "NeedsCompilation": "yes",
  "Packaged": {
    "Date": "2026-10-08 10:25:37 UTC",
    "User": "root"
  },
  "Author": "Nils Kehrein [aut, cre],\nSETAC Europe IG Effect Modeling [ccp]",
  "Maintainer": "Nils Kehrein <nils.kehrein@gmail.com>",
  "_user": "nkehrein",
  "_type": "src",
  "_file": "lemna_1.0.3.tar.gz",
  "_fileid": "https://r2.ropensci.org/3e58dac34ca3362a9dd0b96c95c2184b93a6257cd2b012f43d4795aa7b299bb8",
  "_filesize": 1221457,
  "_sha256": "3e58dac34ca3362a9dd0b96c95c2184b93a6257cd2b012f43d4795aa7b299bb8",
  "_expires": "2027-01-16T11:19:12.000Z",
  "_created": "2026-10-08T10:25:37.000Z",
  "_published": "2026-10-08T11:19:13.990Z",
  "_buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_jobs": [
    {
      "job": 113265146859,
      "time": 105,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "11543003965"
    },
    {
      "job": 113265146728,
      "time": 117,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "11542898743"
    },
    {
      "job": 113265146974,
      "time": 145,
      "config": "linux-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11543446690"
    },
    {
      "job": 113265146865,
      "time": 122,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11543367309"
    },
    {
      "job": 113265146619,
      "time": 103,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "11545588736"
    },
    {
      "job": 113265146589,
      "time": 310,
      "config": "macos-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "11543416784"
    },
    {
      "job": 113265146559,
      "time": 120,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11546632821"
    },
    {
      "job": 113265146723,
      "time": 341,
      "config": "macos-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11543387785"
    },
    {
      "job": 113263665126,
      "time": 242,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11543451542"
    },
    {
      "job": 113265146613,
      "time": 91,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "11542819453"
    },
    {
      "job": 113265146711,
      "time": 346,
      "config": "windows-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "11544000344"
    },
    {
      "job": 113265146765,
      "time": 149,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "11543630673"
    },
    {
      "job": 113265146986,
      "time": 90,
      "config": "windows-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "11543860156"
    },
    {
      "job": 113265146867,
      "time": 335,
      "config": "windows-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11543159047"
    },
    {
      "job": 113265146887,
      "time": 148,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11543238165"
    }
  ],
  "_upstream": "https://github.com/nkehrein/lemna",
  "_commit": {
    "id": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
    "author": "Nils Kehrein <nils.kehrein@bayer.com>",
    "committer": "Nils Kehrein <nils.kehrein@bayer.com>",
    "message": "github pages updated\n",
    "time": 1757687382
  },
  "_maintainer": {
    "name": "Nils Kehrein",
    "email": "nils.kehrein@gmail.com",
    "login": "nkehrein",
    "description": "Environmental Modeling Scientist / Data and Algorithms",
    "uuid": 74192425
  },
  "_distro": "resolute",
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.6.0",
      "role": "Depends"
    },
    {
      "package": "deSolve",
      "role": "Imports"
    },
    {
      "package": "ggplot2",
      "role": "Imports"
    },
    {
      "package": "gridExtra",
      "role": "Imports"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    },
    {
      "package": "testthat",
      "version": ">= 3.0.0",
      "role": "Suggests"
    },
    {
      "package": "dplyr",
      "role": "Suggests"
    },
    {
      "package": "tidyr",
      "role": "Suggests"
    },
    {
      "package": "future",
      "role": "Suggests"
    },
    {
      "package": "furrr",
      "role": "Suggests"
    },
    {
      "package": "RColorBrewer",
      "role": "Suggests"
    },
    {
      "package": "microbenchmark",
      "role": "Suggests"
    },
    {
      "package": "roxyglobals",
      "role": "Suggests"
    }
  ],
  "_owner": "nkehrein",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [],
  "_tags": [],
  "_topics": [
    "simulation"
  ],
  "_stars": 1,
  "_contributors": [
    {
      "user": "nkehrein",
      "count": 21,
      "uuid": 74192425
    },
    {
      "user": "michaelchirico",
      "count": 1,
      "uuid": 7606389
    }
  ],
  "_userbio": {
    "uuid": 74192425,
    "type": "user",
    "name": "Nils Kehrein",
    "followers": 3,
    "description": "Environmental Modeling Scientist / Data and Algorithms"
  },
  "_downloads": {
    "count": 330,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/lemna"
  },
  "_devurl": "https://github.com/nkehrein/lemna",
  "_searchresults": 6,
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/lemna.html",
    "extra/manual.pdf",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "LICENSE"
  ],
  "_homeurl": "https://github.com/nkehrein/lemna",
  "_realowner": "nkehrein",
  "_cranurl": true,
  "_releases": [
    {
      "version": "0.9.0",
      "date": "2021-12-21"
    },
    {
      "version": "0.9.1",
      "date": "2022-01-27"
    },
    {
      "version": "0.9.2",
      "date": "2022-03-31"
    },
    {
      "version": "1.0.0",
      "date": "2022-05-10"
    },
    {
      "version": "1.0.1",
      "date": "2023-04-22"
    },
    {
      "version": "1.0.2",
      "date": "2025-03-31"
    }
  ],
  "_exports": [
    "effect",
    "lemna",
    "lemna_desolve",
    "new_lemna_scenario",
    "param_defaults",
    "param_new"
  ],
  "_datasets": [
    {
      "name": "focusd1",
      "title": "A Lemna scenario using FOCUS D1 Ditch environmental conditions",
      "object": "focusd1",
      "class": [
        "lemna_scenario"
      ],
      "fields": [],
      "table": false,
      "tojson": false
    },
    {
      "name": "focusd2",
      "title": "A Lemna scenario using FOCUS D2 Ditch environmental conditions",
      "object": "focusd2",
      "class": [
        "lemna_scenario"
      ],
      "fields": [],
      "table": false,
      "tojson": false
    },
    {
      "name": "focusr3",
      "title": "A Lemna scenario using FOCUS R3 Stream environmental conditions",
      "object": "focusr3",
      "class": [
        "lemna_scenario"
      ],
      "fields": [],
      "table": false,
      "tojson": false
    },
    {
      "name": "hommen212",
      "title": "Observed frond numbers reported by Hommen _et al._ (2015)",
      "object": "hommen212",
      "class": [
        "tbl_df",
        "tbl",
        "data.frame"
      ],
      "fields": [
        "time",
        "level",
        "FrondNo"
      ],
      "rows": 25,
      "table": true,
      "tojson": true
    },
    {
      "name": "metsulfuron",
      "title": "A Lemna scenario fitted to metsulfuron-methyl effect data",
      "object": "metsulfuron",
      "class": [
        "lemna_scenario"
      ],
      "fields": [],
      "table": false,
      "tojson": false
    },
    {
      "name": "schmitt77",
      "title": "Observed frond numbers reported by Schmitt _et al._ (2013)",
      "object": "schmitt77",
      "class": [
        "tbl_df",
        "tbl",
        "data.frame"
      ],
      "fields": [
        "time",
        "level",
        "FrondNo"
      ],
      "rows": 49,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "effect",
      "title": "Effects on biomass",
      "topics": [
        "effect",
        "effect.default",
        "effect.lemna_scenario"
      ]
    },
    {
      "page": "focusd1",
      "title": "A Lemna scenario using FOCUS D1 Ditch environmental conditions",
      "topics": [
        "focusd1"
      ]
    },
    {
      "page": "focusd2",
      "title": "A Lemna scenario using FOCUS D2 Ditch environmental conditions",
      "topics": [
        "focusd2"
      ]
    },
    {
      "page": "focusr3",
      "title": "A Lemna scenario using FOCUS R3 Stream environmental conditions",
      "topics": [
        "focusr3"
      ]
    },
    {
      "page": "hommen212",
      "title": "Observed frond numbers reported by Hommen _et al._ (2015)",
      "topics": [
        "hommen212"
      ]
    },
    {
      "page": "lemna",
      "title": "Simulate a Lemna scenario",
      "topics": [
        "lemna",
        "lemna.default",
        "lemna.lemna_scenario"
      ]
    },
    {
      "page": "lemna_desolve",
      "title": "Access to the ODE solver",
      "topics": [
        "lemna_desolve"
      ]
    },
    {
      "page": "metsulfuron",
      "title": "A Lemna scenario fitted to metsulfuron-methyl effect data",
      "topics": [
        "metsulfuron"
      ]
    },
    {
      "page": "new_lemna_scenario",
      "title": "Lemna scenario constructor",
      "topics": [
        "new_lemna_scenario"
      ]
    },
    {
      "page": "param_defaults",
      "title": "Default parameters",
      "topics": [
        "param_defaults",
        "param_new"
      ]
    },
    {
      "page": "plot.lemna_result",
      "title": "Plot a Lemna scenario result",
      "topics": [
        "plot.lemna_result"
      ]
    },
    {
      "page": "schmitt77",
      "title": "Observed frond numbers reported by Schmitt _et al._ (2013)",
      "topics": [
        "schmitt77"
      ]
    }
  ],
  "_readme": "https://github.com/nkehrein/lemna/raw/HEAD/README.md",
  "_rundeps": [
    "cli",
    "cpp11",
    "deSolve",
    "farver",
    "ggplot2",
    "glue",
    "gridExtra",
    "gtable",
    "isoband",
    "labeling",
    "lifecycle",
    "R6",
    "RColorBrewer",
    "rlang",
    "S7",
    "scales",
    "vctrs",
    "viridisLite",
    "withr"
  ],
  "_vignettes": [
    {
      "source": "lemna-introduction.Rmd",
      "filename": "lemna-introduction.html",
      "title": "Introduction to the Lemna package",
      "author": "Nils Kehrein",
      "engine": "knitr::rmarkdown_notangle",
      "headings": [
        "Core functions",
        "Tutorial",
        "Simulate the Lemna growth model",
        "Using environmental time-series",
        "Using simulation results",
        "Derive effect endpoints",
        "Create scenario objects",
        "Speed up simulations with compiled code",
        "References"
      ],
      "created": "2021-12-20 17:03:19",
      "modified": "2025-09-12 14:22:54",
      "commits": 5
    },
    {
      "source": "lemna-verification.Rmd",
      "filename": "lemna-verification.html",
      "title": "Model verification",
      "author": "Nils Kehrein",
      "engine": "knitr::rmarkdown_notangle",
      "headings": [
        "Introduction",
        "Schmitt et al. model",
        "Unlimited growth scenarios",
        "Seven days exposure, seven days recovery",
        "Two days of exposure, twelve days of recovery",
        "Complex exposure patterns",
        "Environmental variability scenarios",
        "FOCUS D1 Ditch",
        "FOCUS D2 Ditch",
        "FOCUS R3 Stream",
        "Compiled code",
        "Acknowledgements",
        "References"
      ],
      "created": "2021-12-20 17:03:19",
      "modified": "2025-09-12 14:22:54",
      "commits": 8
    }
  ],
  "_score": 4,
  "_indexed": true,
  "_nocasepkg": "lemna",
  "_universes": [
    "nkehrein"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.0.3",
      "date": "2026-10-08T10:27:23.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/e402b161b08a7912b1bbd7c93fe588465d815fdea244865a16d115b4a47aff4d",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.0.3",
      "date": "2026-10-08T10:27:36.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/047512befbe040f23930edb7a90b2fd2435bea5a63f409355e5eb79b03badd44",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.0.3",
      "date": "2026-10-08T10:28:05.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/f0f35918f894341c8d1f2352e1b93122cb6bcc80fbae506f0a36bbe5ea0fed16",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.0.3",
      "date": "2026-10-08T10:27:43.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/60192f37a8c3c4cf56609e234356a9c1e5c29bc0f680ac16f37b67887ee2580b",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.0.3",
      "date": "2026-10-08T11:18:09.000Z",
      "arch": "aarch64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/a8cba2738d2f3d278ae0b1c084d2c97c4c3745577a865ee8d03173b3ee652d71",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.0.3",
      "date": "2026-10-08T10:29:39.000Z",
      "arch": "x86_64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/5738d1066baa3ddfc43b7852b588ea39f8f9e8a8ccc5e8cf5dafc08600e21127",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.0.3",
      "date": "2026-10-08T11:18:22.000Z",
      "arch": "aarch64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/f9ca502d36549af02931f47ac9066311ba59020746d56c65a27b17b09e15ba3a",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.0.3",
      "date": "2026-10-08T10:29:32.000Z",
      "arch": "x86_64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/57396bfc7920406d1fd187312dcbb96ce376ad8e95f6029c231dac9923fb44da",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.0.3",
      "date": "2026-10-08T10:27:28.000Z",
      "arch": "emscripten",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/ce2099dcb3cc4955198eeb0d970c5b8f13f704df38f3374d39aa05eec5eecbf3",
      "status": "success",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.0.3",
      "date": "2026-10-08T10:30:43.000Z",
      "arch": "aarch64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/9fab6115c9f91bf79a6d92ad5ea91e52ad8a25a72e8741d86b3319eb91a35c57",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.0.3",
      "date": "2026-10-08T10:27:12.000Z",
      "arch": "x86_64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/cd04954ccf543bd805adc94668a92f70f28401f409eb445c289d58a19fb81201",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.0.3",
      "date": "2026-10-08T10:26:49.000Z",
      "arch": "x86_64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/d3ecd75aafa53bfc71af9ecadb6d8a5d3e29e5de59caaa553d1f7d97df06a2af",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.0.3",
      "date": "2026-10-08T10:30:27.000Z",
      "arch": "aarch64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/b58dc986b6552132d7b6e643abff0cc8b0a92efec147941ae3123af53e3952cf",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.0.3",
      "date": "2026-10-08T10:27:46.000Z",
      "arch": "x86_64",
      "commit": "59de49c23aa5c34f48e180c59c5ff061ded30be4",
      "fileid": "https://r2.ropensci.org/d77112f11abc8b4bdea76a52e1a1c0e83bab631719e45660c7b0e146a66acade",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/nkehrein/actions/runs/37762933092"
    }
  ]
}