Function reference

All functions

hasCosts() geo.segments()

Auxiliary methods for geoGraph

buffer(<gGraph>) buffer(<gData>)

Compute buffers around locations for gGraph and gData objects

closestNode()

Find the closest node to a given location

combineCosts()

Combine the costs of two gGraph objects

areNeighbours() areConnected() isConnected(<gData>) isReachable() connectivityPlot()

Check connectivity of a gGraph object

dijkstraBetween() dijkstraFrom() plot(<gPath>) gPath2dist()

Shortest path using Dijkstra algorithm

dropDeadEdges()

Get rid of some 'dead' edges or nodes

extractFromLayer()

Retrieves node attributes from a layer

findLand()

Find which nodes are on land

gData-class gData [,gData-method [,gData,ANY,ANY-method [,gData,ANY,ANY,ANY-method getCoords,gData-method getData-methods getData,gData-method getData getNodes,gData-method initialize,gData-method show,gData-method is.gData getGraph,gData-method

Formal class "gData"

gGraph-class gGraph [,gGraph-method [,gGraph,ANY,ANY-method [,gGraph,ANY,ANY,ANY-method getCoords,gGraph-method getGraph,gGraph-method getNodes,gGraph-method initialize,gGraph-method dropCosts,gGraph-method dropCosts show,gGraph-method is.gGraph getGraph getCoords getNodes

Formal class "gGraph"

geo.add.edges()

Add and remove edges from a gGraph object

geo.change.attr()

Change values of a node attribute

geoGraph-package geoGraph

The geoGraph package

getColors()

Get colors associated to edges of a gGraph object

getCosts() getNodeCosts()

Get costs associated to edges of a gGraph object

getEdges()

Get edges from a gGraph object

getNodesAttr()

Get nodes attributes from gGraph/gData object

hgdp hgdpPlus

Human genome diversity panel - georeferenced data

isInArea()

Find which nodes fall in a given area

makeGrid()

Build a regular grid gGraph

plot(<gData>,<missing>) points(<gData>)

Plot a gData object.

plot-gGraph plot,gGraph-method plot,gGraph,missing-method plot.gGraph points,gGraph-method points.gGraph plotEdges

Plot a gGraph object.

setCosts()

Set friction in a gGraph object

setDistCosts()

Set costs associated to edges based on geographic distances

setEdges()

Add and remove edges from a gGraph object

worldgraph rawgraph.10k rawgraph.40k worldgraph.10k worldgraph.40k worldshape

Worldwide geographic graphs

zoom geo.zoomin geo.zoomout geo.slide geo.back geo.bookmark geo.goto .zoomlog.up

Navigate in the plot of a gGraph object