neighbourhood {gRapHD}R Documentation

Neighbourhood of a central vertex.

Description

Finds the set of vertices with up to a given distance from a given vertex.

Usage

  neighbourhood(model=NULL,edges=NULL,orig=NULL,rad=1)

Arguments

model gRapHD object.
edges matrix with 2 columns, each row representing one edge, and each column one of the vertices in the edge. Column 1 contains the vertex with lower index.
orig central vertex.
rad distance.

Details

Finds the set of vertices with up to a given distance from a given vertex.

Value

Returns a list with:

subEdges matrix with 2 columns, each row representing one edge, and each column one of the vertices in the edge. Column 1 contains the vertex with lower index.
v matrix with 2 columns, the first indicating the vertex index, and the second the distance to the orig.

Author(s)

Gabriel Coelho Goncalves de Abreu (Gabriel.Abreu@agrsci.dk)
Rodrigo Labouriau (Rodrigo.Labouriau@agrsci.dk)
David Edwards (David.Edwards@agrsci.dk)

Examples

  data(dsCont)
  m1 <- minForest(dsCont,homog=TRUE,forbEdges=NULL,stat="LR")
  plotG(edges=neighbourhood(model=m1,orig=27,rad=2)$edges)

[Package gRapHD version 0.1.0 Index]