Package index • geoGraph

Classes

Classes included in the package.

Functions for creating new custom gGraph objects.

Functions for modifying gGraph objects.

Functions for interactively modifying gGraph objects.

Functions for accessing slots of a gGraph or gData object.

getColors(): Get colors associated to nodes of a gGraph object
getCoords(): Get coordinates of nodes in a gGraph or gData object
getCosts() getNodeCosts(): Get costs associated to edges of a gGraph object
getData(): Get the data component of a gData object
getEdges(): Get edges from a gGraph object
getGraph(): Get the graph component of a gGraph or gData object
getNodes(): Get nodes of a gGraph or gData object
getNodesAttr(): Get nodes attributes from gGraph/gData object
setColors(): Set color rules for a gGraph object
setGraph(): Set the linked gGraph for a gData object

Functions for finding nodes and querying spatial relationships.

areConnected(): Test if a set of nodes form a connected set
areNeighbours(): Tests connectivity between pairs of nodes
isConnected(<gData>) isConnected(<gGraph>): Test if a set of nodes form a connected set
isReachable(): Tests if location reachable from nodes
closestNode(): Find the closest node to a given location
isInArea(): Find which nodes fall in a given area
findLand(): Find which nodes are on land
dropDeadEdges(): Get rid of some 'dead' edges or nodes
keepMaxConnectedSet(): Keep only the largest connected set

Functions adjusting the costs of a gGraph object.

combineCosts(): Combine the costs of two gGraph objects
dropCosts(): Remove all costs from a gGraph object
getCosts() getNodeCosts(): Get costs associated to edges of a gGraph object
hasCosts(): Check if a gGraph has costs
setCosts(): Set friction in a gGraph object
setDistCosts(): Set costs associated to edges based on geographic distances

Functions for computing shortest paths and distances.

dijkstraBetween(): Find the shortest path between nodes in a graph
dijkstraBuffer(): Find nodes reachable within a cost threshold
dijkstraFrom(): Find the minimum cost path
gPath2dist(): Extract distances from a gPath object
polygonBetween(): Least-cost paths between two polygons
buffer(<gGraph>) buffer(<gData>): Compute buffers around locations for gGraph and gData objects

Basic functions for visualising gGraph and gData objects.

plot(<gData>,<missing>) points(<gData>): Plot a gData object.
plot(<gGraph>,<missing>) points(<gGraph>) plotEdges(): Plot a gGraph object.
plot(<gPath>) print(<gPath>): Plot a gPath object
connectivityPlot(): Plot connected sets of a gGraph object
geo.segments(): Plot segments correctly when crossing the antimeridian
zoom geo.zoomin geo.zoomout geo.slide geo.back geo.bookmark geo.goto .zoomlog.up: Navigate in the plot of a gGraph object

Plotting functions based on ggplot2.

Datasets included in the package.

hgdp hgdpPlus: Human genome diversity panel - georeferenced data
worldgraph rawgraph.10k rawgraph.40k worldgraph.10k worldgraph.40k: Worldwide geographic graphs
fst_hgdp: Pairwise FST matrix for HGDP populations

Basic methods to subset and show gGraph and gData objects

subset-gData [,gData-method [,gData,ANY,ANY-method [,gData,ANY,ANY,ANY-method: Subset a gData object
subset-gGraph [,gGraph-method [,gGraph,ANY,ANY-method [,gGraph,ANY,ANY,ANY-method: Subset a gGraph object