graph_from_atlas {igraph} | R Documentation |
graph_from_atlas()
creates graphs from the book
‘An Atlas of Graphs’ by
Roland C. Read and Robin J. Wilson. The atlas contains all undirected
graphs with up to seven vertices, numbered from 0 up to 1252. The
graphs are listed:
in increasing order of number of nodes;
for a fixed number of nodes, in increasing order of the number of edges;
for fixed numbers of nodes and edges, in increasing order of the degree sequence, for example 111223 < 112222;
for fixed degree sequence, in increasing number of automorphisms.
graph_from_atlas(n)
atlas(...)
n |
The id of the graph to create. |
... |
Passed to |
An igraph graph.
Other deterministic constructors:
graph_from_edgelist()
,
graph_from_literal()
,
make_chordal_ring()
,
make_empty_graph()
,
make_full_citation_graph()
,
make_full_graph()
,
make_graph()
,
make_lattice()
,
make_ring()
,
make_star()
,
make_tree()
## Some randomly picked graphs from the atlas
graph_from_atlas(sample(0:1252, 1))
graph_from_atlas(sample(0:1252, 1))