getgcc function

Extracting the giant connected component from an igraph object

The function uses igraph::clusters and igraph::induced.subgraph to extract the giant component of an igraph object.

getgcc(net)

Arguments

• net: An igraph object.

Returns

getgcc returns an igraph object with the giant connected component of an igraph object.

Details

In a connected component of an undirected graph all pairs of vertices u and v are reachable by a path. The giant connected component describes the largest connected component of a graph object.

References

G. Csardi and T. Nepusz, The igraph software package for complex network research, InterJournal, Complex Systems,1695, 2006, http://igraph.org

Examples

# The example network "exanet" contains 814 genes with 1103 edges
data(exanet)

# The giant connected component of the example 
# network contains 382 genes with 989 edges
getgcc(exanet)