Creates a ring lattice with \(n\) vertices, each one of degree (at most) \(k\) as an undirected graph. This is the basis of rgraph_ws.

ring_lattice(n, k, undirected = FALSE)

Arguments

n

Integer scalar. Size of the graph.

k

Integer scalar. Out-degree of each vertex.

undirected

Logical scalar. Whether the graph is undirected or not.

Value

A sparse matrix of class dgCMatrix of size \(n\times n\).

Details

when undirected=TRUE, the degree of each node always even. So if k=3, then the degree will be 2.

References

Watts, D. J., & Strogatz, S. H. (1998). Collective dynamics of “small-world” networks. Nature, 393(6684), 440–2. doi:10.1038/30918

See also

Other simulation functions: permute_graph(), rdiffnet(), rewire_graph(), rgraph_ba(), rgraph_er(), rgraph_ws()