Use this if you are using igraph from R
graph_from_edgelist
creates a graph from an edge list. Its argument
is a two-column matrix, each row defines one edge. If it is
a numeric matrix then its elements are interpreted as vertex ids. If
it is a character matrix then it is interpreted as symbolic vertex
names and a vertex id will be assigned to each name, and also a
name
vertex attribute will be added.
graph_from_edgelist(el, directed = TRUE) from_edgelist(...)
el |
The edge list, a two column matrix, character or numeric. |
directed |
Whether to create a directed graph. |
... |
Passed to |
An igraph graph.
Other determimistic constructors: graph_from_atlas
,
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
el <- matrix( c("foo", "bar", "bar", "foobar"), nc = 2, byrow = TRUE) graph_from_edgelist(el) # Create a ring by hand graph_from_edgelist(cbind(1:10, c(2:10, 1)))