# graph_from_edgelist

##### Create a graph from an edge list matrix

`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.

##### Usage

`graph_from_edgelist(el, directed = TRUE)`from_edgelist(...)

##### Arguments

- el
The edge list, a two column matrix, character or numeric.

- directed
Whether to create a directed graph.

- ...
Passed to

`graph_from_edgelist`

.

##### Value

An igraph graph.

##### See Also

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()`

##### Examples

```
# NOT RUN {
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)))
# }
```

*Documentation reproduced from package igraph, version 1.2.5, License: GPL (>= 2)*