Use this if you are using igraph from R
| sample_islands {igraph} | R Documentation | 
Create a number of Erdos-Renyi random graphs with identical parameters, and connect them with the specified number of edges.
sample_islands(islands.n, islands.size, islands.pin, n.inter)
| islands.n | The number of islands in the graph. | 
| islands.size | The size of islands in the graph. | 
| islands.pin | The probability to create each possible edge into each island. | 
| n.inter | The number of edges to create between two islands. | 
An igraph graph.
g <- sample_islands(3, 10, 5/10, 1) oc <- cluster_optimal(g) oc
Samuel Thiriot