# sample_gnp

From igraph v1.2.4.2
by Gabor Csardi

##### Generate random graphs according to the G(n,p) Erdos-Renyi model

This model is very simple, every possible edge is created with the same constant probability.

- Keywords
- graphs

##### Usage

`sample_gnp(n, p, directed = FALSE, loops = FALSE)`gnp(...)

##### Arguments

- n
The number of vertices in the graph.

- p
The probability for drawing an edge between two arbitrary vertices (G(n,p) graph).

- directed
Logical, whether the graph will be directed, defaults to FALSE.

- loops
Logical, whether to add loop edges, defaults to FALSE.

- ...
Passed to

`sample_app`

.

##### Details

The graph has ‘n’ vertices and for each edge the probability that it is present in the graph is ‘p’.

##### Value

A graph object.

##### References

Erdos, P. and Renyi, A., On random graphs, *Publicationes
Mathematicae* 6, 290--297 (1959).

##### See Also

##### Examples

```
# NOT RUN {
g <- sample_gnp(1000, 1/1000)
degree_distribution(g)
# }
```

*Documentation reproduced from package igraph, version 1.2.4.2, License: GPL (>= 2)*

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