subNetwork {BioNet} | R Documentation |
The function creates a subgraph with the nodes given in the nodeList or for these nodes including their direct neighbors.
subNetwork(nodeList, network, neighbors=c("none", "first"))
nodeList |
Character vector of nodes, contained in the subgraph. |
network |
Graph that is used for subgraph extraction. |
neighbors |
Neighborhood, that is chosen for the subgraph extraction. "none" are only the selected nodes, "first" includes the direct neighbors of the selected nodes. |
A graph object.
Marcus Dittrich
library(igraph) el <- cbind(c("a", "b", "c", "d", "e", "f", "d"), c("b", "c", "d", "e", "f", "a", "b")) graph <- graph.edgelist(el, directed=TRUE) node.list <- c("a", "b", "c") graph2 <- subNetwork(nodeList=node.list, network=graph) ## Not run: par(mfrow=c(1,2)); plotModule(graph); plotModule(graph2) ## End(Not run) # or in graphNEL format: graph3 <- igraph.to.graphNEL(graph) graph4 <- subNetwork(nodeList=node.list, network=graph3) graph3 graph4