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  "Package": "dfoliatR",
  "Type": "Package",
  "Title": "Detection and Analysis of Insect Defoliation Signals in Tree\nRings",
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  "Authors@R": "c(person(\"Chris\", \"Guiterman\", email = \"christopher.guiterman@noaa.gov\", role = c(\"aut\", \"cre\"), comment = c(ORCID = \"0000-0002-9706-9332\")),\nperson(\"Ann\", \"Lynch\", role = \"aut\", comment = c(ORCID = \"0000-0002-8043-3855\")),\nperson(\"Jodi\", \"Axelson\", role = \"aut\", comment = c(ORCID = \"0000-0002-1799-6364\")))",
  "Description": "Tools to identify, quantify, analyze, and visualize growth\nsuppression events in tree rings that are often produced by\ninsect defoliation. Described in Guiterman et al. (2020)\n<doi:10.1016/j.dendro.2020.125750>.",
  "URL": "https://chguiterman.github.io/dfoliatR/",
  "BugReports": "https://github.com/chguiterman/dfoliatR/issues",
  "License": "GPL (>= 3)",
  "Encoding": "UTF-8",
  "LazyData": "true",
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  "VignetteBuilder": "knitr",
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  "Config/pak/sysreqs": "cmake make libicu-dev libpng-dev libxml2-dev",
  "Repository": "https://chguiterman.r-universe.dev",
  "Date/Publication": "2023-08-09 20:02:14 UTC",
  "RemoteUrl": "https://github.com/chguiterman/dfoliatr",
  "RemoteRef": "HEAD",
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  "Packaged": {
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  },
  "Author": "Chris Guiterman [aut, cre] (ORCID:\n<https://orcid.org/0000-0002-9706-9332>),\nAnn Lynch [aut] (ORCID: <https://orcid.org/0000-0002-8043-3855>),\nJodi Axelson [aut] (ORCID: <https://orcid.org/0000-0002-1799-6364>)",
  "Maintainer": "Chris Guiterman <christopher.guiterman@noaa.gov>",
  "_user": "chguiterman",
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  "_created": "2026-07-19T06:37:38.000Z",
  "_published": "2026-07-19T06:42:14.179Z",
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      "package": "dplR",
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  "_usedby": 0,
  "_updates": [],
  "_tags": [],
  "_topics": [
    "budworm",
    "defoliators",
    "dendrochronology",
    "dendroecology",
    "disturbance",
    "forests",
    "insects",
    "outbreak",
    "tree-rings"
  ],
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    "name": "Chris Guiterman",
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  },
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  },
  "_devurl": "https://github.com/chguiterman/dfoliatr",
  "_pkgdown": "https://chguiterman.github.io/dfoliatR/",
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  "_rbuild": "4.6.1",
  "_assets": [
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    "extra/citation.html",
    "extra/citation.json",
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    "extra/contents.json",
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    "extra/NEWS.txt",
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    "extra/readme.md",
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      "date": "2020-03-04"
    },
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      "date": "2020-09-02"
    },
    {
      "version": "0.3.0",
      "date": "2023-08-09"
    }
  ],
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    "as_defol",
    "as_obr",
    "as.defol",
    "as.obr",
    "defol",
    "defol_stats",
    "defoliate_trees",
    "get_defol_events",
    "gsi",
    "id_defoliation",
    "is.defol",
    "is.obr",
    "obr",
    "outbreak",
    "outbreak_stats",
    "plot_defol",
    "plot_outbreak",
    "sample_depth",
    "series_names",
    "stack_defoliation"
  ],
  "_datasets": [
    {
      "name": "dmj_defol",
      "title": "Demi John dfol object",
      "object": "dmj_defol",
      "class": [
        "defol",
        "data.frame"
      ],
      "fields": [
        "year",
        "series",
        "gsi",
        "ngsi",
        "defol_status"
      ],
      "rows": 4267,
      "table": true,
      "tojson": true
    },
    {
      "name": "dmj_h",
      "title": "Demi John Douglas-fir",
      "object": "dmj_h",
      "class": [
        "rwl",
        "data.frame"
      ],
      "fields": [
        "DMJ01",
        "DMJ02",
        "DMJ03",
        "DMJ04",
        "DMJ06",
        "DMJ07",
        "DMJ11",
        "DMJ14",
        "DMJ15",
        "DMJ16",
        "DMJ17",
        "DMJ22",
        "DMJ23",
        "DMJ24",
        "DMJ25",
        "DMJ26",
        "DMJ27"
      ],
      "rows": 378,
      "table": true,
      "tojson": true
    },
    {
      "name": "dmj_nh",
      "title": "Demi John area ponderosa pine",
      "object": "dmj_nh",
      "class": [
        "crn",
        "data.frame"
      ],
      "fields": [
        "WIR  S"
      ],
      "rows": 323,
      "table": true,
      "tojson": true
    },
    {
      "name": "dmj_obr",
      "title": "Demi John outbreak object",
      "object": "dmj_obr",
      "class": [
        "obr",
        "data.frame"
      ],
      "fields": [
        "year",
        "samp_depth",
        "num_defol",
        "perc_defol",
        "num_max_defol",
        "perc_max_defol",
        "mean_gsi",
        "mean_ngsi",
        "outbreak_status"
      ],
      "rows": 323,
      "table": true,
      "tojson": true
    },
    {
      "name": "efk_defol",
      "title": "East Fork defol object",
      "object": "efk_defol",
      "class": [
        "defol",
        "data.frame"
      ],
      "fields": [
        "year",
        "series",
        "gsi",
        "ngsi",
        "defol_status"
      ],
      "rows": 5142,
      "table": true,
      "tojson": true
    },
    {
      "name": "efk_h",
      "title": "East Fork Jemez River Douglas-fir",
      "object": "efk_h",
      "class": [
        "rwl",
        "data.frame"
      ],
      "fields": [
        "EFK01",
        "EFK02",
        "EFK03",
        "EFK04",
        "EFK05",
        "EFK06",
        "EFK07",
        "EFK08",
        "EFK09",
        "EFK10",
        "EFK11",
        "EFK12",
        "EFK13",
        "EFK14",
        "EFK15",
        "EFK16",
        "EFK17",
        "EFK19",
        "EFK20",
        "EFK21",
        "EFK22",
        "EFK23",
        "EFK24",
        "EFK25",
        "EFK26",
        "EFK27",
        "EFK28",
        "EFK29",
        "EFK30",
        "EFK31",
        "EFK32",
        "EFK33",
        "EFK34",
        "EFK35",
        "EFK36",
        "EFK37",
        "EFK38"
      ],
      "rows": 221,
      "table": true,
      "tojson": true
    },
    {
      "name": "efk_nh",
      "title": "Baca ponderosa pine chronology",
      "object": "efk_nh",
      "class": [
        "crn",
        "data.frame"
      ],
      "fields": [
        "BAC2 S"
      ],
      "rows": 358,
      "table": true,
      "tojson": true
    },
    {
      "name": "efk_obr",
      "title": "East Fork outbreak object",
      "object": "efk_obr",
      "class": [
        "obr",
        "data.frame"
      ],
      "fields": [
        "year",
        "samp_depth",
        "num_defol",
        "perc_defol",
        "num_max_defol",
        "perc_max_defol",
        "mean_gsi",
        "mean_ngsi",
        "outbreak_status"
      ],
      "rows": 221,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "as_defol",
      "title": "Cast data frame to list-like 'defol' object",
      "topics": [
        "as_defol"
      ]
    },
    {
      "page": "as_obr",
      "title": "Cast data frame to list-like 'obr' object",
      "topics": [
        "as_obr"
      ]
    },
    {
      "page": "as.defol",
      "title": "Alias to 'as_defol()'",
      "topics": [
        "as.defol"
      ]
    },
    {
      "page": "as.obr",
      "title": "Alias to 'as_obr()'",
      "topics": [
        "as.obr"
      ]
    },
    {
      "page": "defol",
      "title": "Constructor for S3 defol class",
      "topics": [
        "defol"
      ]
    },
    {
      "page": "defol_stats",
      "title": "Descriptive statistics for defoliation trees",
      "topics": [
        "defol_stats"
      ]
    },
    {
      "page": "defoliate_trees",
      "title": "Identify defoliation events in host trees",
      "topics": [
        "defoliate_trees"
      ]
    },
    {
      "page": "dmj_defol",
      "title": "Demi John dfol object",
      "topics": [
        "dmj_defol"
      ]
    },
    {
      "page": "dmj_h",
      "title": "Demi John Douglas-fir",
      "topics": [
        "dmj_h"
      ]
    },
    {
      "page": "dmj_nh",
      "title": "Demi John area ponderosa pine",
      "topics": [
        "dmj_nh"
      ]
    },
    {
      "page": "dmj_obr",
      "title": "Demi John outbreak object",
      "topics": [
        "dmj_obr"
      ]
    },
    {
      "page": "efk_defol",
      "title": "East Fork defol object",
      "topics": [
        "efk_defol"
      ]
    },
    {
      "page": "efk_h",
      "title": "East Fork Jemez River Douglas-fir",
      "topics": [
        "efk_h"
      ]
    },
    {
      "page": "efk_nh",
      "title": "Baca ponderosa pine chronology",
      "topics": [
        "efk_nh"
      ]
    },
    {
      "page": "efk_obr",
      "title": "East Fork outbreak object",
      "topics": [
        "efk_obr"
      ]
    },
    {
      "page": "get_defol_events",
      "title": "Defoliation event list",
      "topics": [
        "get_defol_events"
      ]
    },
    {
      "page": "gsi",
      "title": "Calculate the growth suppression index",
      "topics": [
        "gsi"
      ]
    },
    {
      "page": "id_defoliation",
      "title": "Identify defoliation events in a host series",
      "topics": [
        "id_defoliation"
      ]
    },
    {
      "page": "is.defol",
      "title": "Check if object is tree-level defoliation object: 'defol'",
      "topics": [
        "is.defol"
      ]
    },
    {
      "page": "is.obr",
      "title": "Check if object is outbreak, meaning site-level outbreak object",
      "topics": [
        "is.obr"
      ]
    },
    {
      "page": "obr",
      "title": "Constructor for an 'obr' object.",
      "topics": [
        "obr"
      ]
    },
    {
      "page": "outbreak",
      "title": "Composite defoliation series to determine outbreak events",
      "topics": [
        "outbreak"
      ]
    },
    {
      "page": "outbreak_stats",
      "title": "Outbreak statistics",
      "topics": [
        "outbreak_stats"
      ]
    },
    {
      "page": "plot_defol",
      "title": "Produce a Gantt plot of individual tree-ring series to show defoliation events in time",
      "topics": [
        "plot_defol"
      ]
    },
    {
      "page": "plot_outbreak",
      "title": "Produce a stacked plot to present composited, site-level insect outbreak chronologies",
      "topics": [
        "plot_outbreak"
      ]
    },
    {
      "page": "plot.defol",
      "title": "Plot a 'defol' object",
      "topics": [
        "plot.defol"
      ]
    },
    {
      "page": "sample_depth",
      "title": "Calculate the sample depth of a defol object",
      "topics": [
        "sample_depth"
      ]
    },
    {
      "page": "series_names",
      "title": "Extract series names from a defol object",
      "topics": [
        "series_names"
      ]
    },
    {
      "page": "stack_defoliation",
      "title": "Stack a defoliation list",
      "topics": [
        "stack_defoliation"
      ]
    }
  ],
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