# graph_from_atlas

##### Create a graph from the Graph Atlas

`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.

##### Usage

`graph_from_atlas(n)`atlas(...)

##### Arguments

- n
The id of the graph to create.

- ...
Passed to

`graph_from_atlas`

.

##### Value

An igraph graph.

##### See Also

Other determimistic constructors: `chordal_ring`

,
`graph.extended.chordal.ring`

,
`make_chordal_ring`

;
`directed_graph`

, `graph`

,
`graph.famous`

,
`make_directed_graph`

,
`make_graph`

,
`make_undirected_graph`

,
`undirected_graph`

;
`empty_graph`

, `graph.empty`

,
`make_empty_graph`

;
`from_edgelist`

,
`graph.edgelist`

,
`graph_from_edgelist`

;
`from_literal`

, `graph.formula`

,
`graph_from_literal`

;
`full_citation_graph`

,
`graph.full.citation`

,
`make_full_citation_graph`

;
`full_graph`

, `graph.full`

,
`make_full_graph`

;
`graph.lattice`

, `lattice`

,
`make_lattice`

; `graph.ring`

,
`make_ring`

, `ring`

;
`graph.star`

, `make_star`

,
`star`

; `graph.tree`

,
`make_tree`

, `tree`

##### Examples

```
# NOT RUN {
## Some randomly picked graphs from the atlas
graph_from_atlas(sample(0:1252, 1))
graph_from_atlas(sample(0:1252, 1))
# }
```

*Documentation reproduced from package igraph, version 1.0.1, License: GPL (>= 2)*