clusterData-methods: Get and set attributes for a cluster of an Ragraph object
In Rgraphviz: Provides plotting capabilities for R graph objects

Description Usage Arguments Author(s) Examples

Attributes of a graph can be accessed using clusterData. There's no default attributes for clusters. The attributes must be defined using graphDataDefaults.

1 2	clusterData(self, cluster, attr) clusterData(self, cluster, attr) <- value

`self`	A `Ragraph-class` instance
`cluster`	cluster number
`attr`	A `character` vector of length one specifying the name of a cluster attribute
`value`	A `character` vector to store as the attribute value

Li Long <li.long@isb-sib.ch>

g1_gz <- gzfile(system.file("GXL/graphExample-01.gxl.gz",
                            package="graph"))
g11_gz <- gzfile(system.file("GXL/graphExample-11.gxl.gz",
                             package="graph"))
if(require(XML)) {
  g1 <- fromGXL(g1_gz)
  g11 <- fromGXL(g11_gz)
  g1_11 <- join(g1, g11)
  sgl <- vector(mode="list", length=2)
  sgl[[1]] <- list(graph=g1, cluster=TRUE)
  sgl[[2]] <- list(graph=g11, cluster=TRUE)
  ng <- agopenSimple(g1_11, "tmpsg", subGList=sgl)
  clusterData(ng, 1, c("bgcolor")) <- c("blue")
  clusterData(ng, 2, c("bgcolor")) <- c("red")
  toFile(ng, layoutType="dot", filename="g1_11_dot.ps", fileType="ps")
}