Use this if you are using igraph from R
make_chordal_ring creates an extended chordal ring.
An extended chordal ring is regular graph, each node has the same
degree. It can be obtained from a simple ring by adding some extra
edges specified by a matrix. Let p denote the number of columns in
the ‘W’ matrix. The extra edges of vertex i
are added according to column i mod p in
‘W’. The number of extra edges is the number
of rows in ‘W’: for each row j an edge
i->i+w[ij] is added if i+w[ij] is less than the number
of total nodes. See also Kotsis, G: Interconnection Topologies for
Parallel Processing Systems, PARS Mitteilungen 11, 1-6, 1993.
make_chordal_ring(n, w, directed = FALSE) chordal_ring(...)
n |
The number of vertices. |
w |
A matrix which specifies the extended chordal ring. See details below. |
directed |
Logical scalar, whether or not to create a directed graph. |
... |
Passed to |
An igraph graph.
Other deterministic constructors:
graph_from_atlas(),
graph_from_edgelist(),
graph_from_literal(),
make_empty_graph(),
make_full_citation_graph(),
make_full_graph(),
make_graph(),
make_lattice(),
make_ring(),
make_star(),
make_tree()
chord <- make_chordal_ring(15,
matrix(c(3, 12, 4, 7, 8, 11), nr = 2))