The function uses igraph::clusters and igraph::induced.subgraph to extract the giant component of an igraph object.
An igraph object.
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.
getgcc returns an igraph object with the giant connected
component of an igraph object.
G. Csardi and T. Nepusz, The igraph software package for complex network research, InterJournal, Complex Systems,1695, 2006, http://igraph.org
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