get.neighborhood: Obtain the Neighborhood of a Given Vertex
In network: Classes for Relational Data

Description Usage Arguments Details Value Author(s) References See Also Examples

get.neighborhood returns the IDs of all vertices belonging to the in, out, or combined neighborhoods of v within network x.

1 2	get.neighborhood(x, v, type = c("out", "in", "combined"), na.omit=TRUE)

`x`	an object of class `network`
`v`	a vertex ID
`type`	the neighborhood to be computed
`na.omit`	logical; should missing edges be ignored when obtaining vertex neighborhoods?

Note that the combined neighborhood is the union of the in and out neighborhoods – as such, no vertex will appear twice.

A vector containing the vertex IDs for the chosen neighborhood.

Carter T. Butts buttsc@uci.edu

Butts, C. T. (2008). “network: a Package for Managing Relational Data in R.” Journal of Statistical Software, 24(2). http://www.jstatsoft.org/v24/i02/

Wasserman, S. and Faust, K. 1994. Social Network Analysis: Methods and Applications. Cambridge: Cambridge University Press.

get.edges, is.adjacent

#Create a network with three edges
m<-matrix(0,3,3)
m[1,2]<-1; m[2,3]<-1; m[3,1]<-1
g<-network(m)

#Examine the neighborhood of vertex 1
get.neighborhood(g,1,"out")
get.neighborhood(g,1,"in")
get.neighborhood(g,1,"combined")