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  "Title": "Distances and Routes on Geographical Grids",
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  "URL": "https://AgrDataSci.github.io/gdistance/",
  "BugReports": "https://github.com/AgrDataSci/gdistance/issues",
  "Description": "Provides classes and functions to calculate various\ndistance measures and routes in heterogeneous geographic spaces\nrepresented as grids. The package implements measures to model\ndispersal histories first presented by van Etten and Hijmans\n(2010) <doi:10.1371/journal.pone.0012060>. Least-cost distances\nas well as more complex distances based on (constrained) random\nwalks can be calculated. The distances implemented in the\npackage are used in geographical genetics, accessibility\nindicators, and may also have applications in other fields of\ngeospatial analysis.",
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    "Compare",
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    "geoCorrection",
    "Logic",
    "matrixValues",
    "matrixValues<-",
    "nlayers",
    "nonoverlap",
    "normalize",
    "Ops",
    "overlap",
    "passage",
    "pathInc",
    "raster",
    "rSPDistance",
    "shortestPath",
    "show",
    "summary",
    "Summary",
    "sumReciprocal",
    "transition",
    "transitionCells",
    "transitionData",
    "transitionMatrix",
    "transitionMatrix<-"
  ],
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      "title": "Genetic distances and coordinates of haplogroup R1b1b2 populations in Europe",
      "object": "genDist",
      "class": [
        "dist"
      ],
      "fields": [],
      "table": false,
      "tojson": false
    },
    {
      "name": "popCoord",
      "title": "Genetic distances and coordinates of haplogroup R1b1b2 populations in Europe",
      "object": "popCoord",
      "class": [
        "data.frame"
      ],
      "fields": [
        "Population",
        "x",
        "y"
      ],
      "rows": 23,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "accCost",
      "title": "Accumulated Cost Surface",
      "topics": [
        "accCost",
        "accCost,TransitionLayer,Coords-method",
        "accCost,TransitionLayer,RasterLayer-method"
      ]
    },
    {
      "page": "adjacencyFromTransition",
      "title": "Adjacent cells",
      "topics": [
        "adjacencyFromTransition"
      ]
    },
    {
      "page": "ArithMath-methods",
      "title": "Arithmetic and mathematical operations with objects of Transition* classes",
      "topics": [
        "Arith,ANY,TransitionLayer-method",
        "Arith,ANY,TransitionStack-method",
        "Arith,TransitionLayer,ANY-method",
        "Arith,TransitionLayer,TransitionLayer-method",
        "Arith,TransitionLayer,TransitionStack-method",
        "Arith,TransitionStack,ANY-method",
        "Arith,TransitionStack,TransitionLayer-method",
        "Arith-methods",
        "ArithMath-methods",
        "Math,TransitionLayer-method",
        "Math,TransitionStack-method",
        "Math-methods"
      ]
    },
    {
      "page": "commuteDistance-methods",
      "title": "Commute-time distance",
      "topics": [
        "commuteDistance",
        "commuteDistance,TransitionLayer,Coords-method"
      ]
    },
    {
      "page": "Coords-class",
      "title": "Coords class",
      "topics": [
        "Coords class",
        "Coords-class"
      ]
    },
    {
      "page": "costDistance-methods",
      "title": "Cost distance",
      "topics": [
        "costDistance",
        "costDistance,TransitionLayer,Coords,Coords-method",
        "costDistance,TransitionLayer,Coords,missing-method"
      ]
    },
    {
      "page": "gdistance",
      "title": "Distances and Routes on Geographical Grids",
      "topics": [
        "gdistance-package",
        "gdistance"
      ]
    },
    {
      "page": "genDist",
      "title": "Genetic distances and coordinates of haplogroup R1b1b2 populations in Europe",
      "topics": [
        "genDist",
        "popCoord"
      ]
    },
    {
      "page": "geoCorrection",
      "title": "Geographic Correction",
      "topics": [
        "geoCorrection",
        "geoCorrection,TransitionLayer,character-method",
        "geoCorrection,TransitionLayer,missing-method"
      ]
    },
    {
      "page": "normalize",
      "title": "Normalize",
      "topics": [
        "normalize",
        "normalize,TransitionLayer-method"
      ]
    },
    {
      "page": "overlap",
      "title": "Overlap and nonoverlap of trajectories",
      "topics": [
        "nonoverlap",
        "overlap"
      ]
    },
    {
      "page": "passage",
      "title": "Probability of passage",
      "topics": [
        "passage",
        "passage,TransitionLayer,Coords,Coords,missing-method",
        "passage,TransitionLayer,Coords,Coords,numeric-method",
        "passage,TransitionLayer,RasterLayer,RasterLayer,missing-method",
        "passage,TransitionLayer,RasterLayer,RasterLayer,numeric-method"
      ]
    },
    {
      "page": "pathInc",
      "title": "Incidence of paths from a common origin: overlap and non-overlap",
      "topics": [
        "pathInc",
        "pathInc,TransitionLayer,Coords,Coords,Coords,missing,missing-method",
        "pathInc,TransitionLayer,Coords,Coords,Coords,missing,Transition-method",
        "pathInc,TransitionLayer,Coords,Coords,Coords,numeric,missing-method",
        "pathInc,TransitionLayer,Coords,Coords,Coords,numeric,Transition-method",
        "pathInc,TransitionLayer,Coords,Coords,missing,missing,missing-method",
        "pathInc,TransitionLayer,Coords,Coords,missing,missing,Transition-method",
        "pathInc,TransitionLayer,Coords,Coords,missing,numeric,missing-method",
        "pathInc,TransitionLayer,Coords,Coords,missing,numeric,Transition-method"
      ]
    },
    {
      "page": "rasterFromTransition",
      "title": "RasterLayer from TransitionLayer object",
      "topics": [
        "raster,TransitionLayer-method"
      ]
    },
    {
      "page": "rSPDistance",
      "title": "Randomized shortest path distance",
      "topics": [
        "rSPDistance",
        "rSPDistance,TransitionLayer,Coords-method"
      ]
    },
    {
      "page": "shortestPath",
      "title": "Shortest path",
      "topics": [
        "shortestPath",
        "shortestPath,TransitionLayer,Coords,Coords-method"
      ]
    },
    {
      "page": "Summary-methods",
      "title": "Summary methods",
      "topics": [
        "mean,TransitionStack-method",
        "sum,TransitionStack-method",
        "Summary,TransitionLayer-method",
        "summary,TransitionLayer-method",
        "Summary,TransitionStack-method",
        "summary,TransitionStack-method",
        "Summary-methods"
      ]
    },
    {
      "page": "sumReciprocal",
      "title": "Reciprocal of the sum of the reciprocals of conductance values in Transition* objects",
      "topics": [
        "sumReciprocal"
      ]
    },
    {
      "page": "transition",
      "title": "Create an object of the class Transition",
      "concept": [
        "Transition"
      ],
      "topics": [
        "transition",
        "transition,RasterBrick-method",
        "transition,RasterLayer-method"
      ]
    },
    {
      "page": "Transition-classes",
      "title": "Transition classes",
      "topics": [
        "==,TransitionLayer,TransitionLayer-method",
        "==,TransitionStack,TransitionStack-method",
        "coerce,RasterLayer,TransitionLayer-method",
        "coerce,TransitionData,sparseMatrix-method",
        "coerce,TransitionLayer,RasterLayer-method",
        "coerce,TransitionLayer,sparseMatrix-method",
        "coerce,TransitionLayer,TransitionData-method",
        "coerce,TransitionLayer,TransitionStack-method",
        "show,TransitionLayer-method",
        "show,TransitionStack-method",
        "Transition-class",
        "Transition-classes",
        "TransitionData-class",
        "TransitionLayer-class",
        "TransitionStack-class"
      ]
    },
    {
      "page": "Transition-extract-replace",
      "title": "Extracting and replacing: class Transition",
      "topics": [
        "Transition-extract-replace",
        "transitionMatrix<-",
        "transitionMatrix<-,TransitionLayer,sparseMatrix-method",
        "TransitionStack<-",
        "[,TransitionLayer,matrix,missing,missing-method",
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        "matrixValues,TransitionLayer-method",
        "matrixValues,TransitionStack-method",
        "matrixValues<-",
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      "title": "gdistance: Distances and Routes on Geographical Grids",
      "author": "Jacob van Etten",
      "engine": "knitr::knitr",
      "headings": [
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        "Introduction: the crow, the wolf, and the drunkard",
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        "Transition* classes",
        "Correcting transition matrix values",
        "Calculating distances",
        "Dispersal paths",
        "Path overlap and non-overlap",
        "Example 1: Hiking around Maunga Whau",
        "Example 2: Geographical genetics",
        "Future work",
        "Acknowledgements",
        "References"
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