# graph_from_edgelist

From igraph v1.2.2
by Gabor Csardi

##### 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 1.2.2, License: GPL (>= 2)*

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