# graph_from_lcf

From igraph v1.0.1
by Gabor Csardi

##### Creating a graph from LCF notation

LCF is short for Lederberg-Coxeter-Frucht, it is a concise notation for 3-regular Hamiltonian graphs. It constists of three parameters, the number of vertices in the graph, a list of shifts giving additional edges to a cycle backbone and another integer giving how many times the shifts should be performed. See http://mathworld.wolfram.com/LCFNotation.html for details.

- Keywords
- graphs

##### Usage

`graph_from_lcf(n, shifts, repeats = 1)`

##### Arguments

- n
Integer, the number of vertices in the graph.

- shifts
Integer vector, the shifts.

- repeats
Integer constant, how many times to repeat the shifts.

##### Value

A graph object.

##### See Also

`graph`

can create arbitrary graphs, see also the other
functions on the its manual page for creating special graphs.

##### Examples

```
# NOT RUN {
# This is the Franklin graph:
g1 <- graph_from_lcf(12, c(5,-5), 6)
g2 <- make_graph("Franklin")
isomorphic(g1, g2)
# }
```

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

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