- er_B(1)
- www.complex-networks.net
- er_B(1)

`er_B`

- Sample a random graph from the Erdos-Renyi model B

`er_B`

`N` *p* [`fileout`]

`er_B`

samples a random graph from the Erdos-Renyi model B, i.e. a
graph with `N` nodes where each of the <N(N-1)/2> edges is created
independently with probability *p*. The program dumps the edge list of
the resulting graph on output. If the optional `fileout` is provided,
the output is written on a file with that name.

`N`Number of nodes in the final graph.

*p*Edge probability.

`fileout`The (optional) name of the filename where the edge list of the graph will be saved.

The following command:

```
$ er_B 1000 0.006
```

samples an undirected random network with `N=1000` nodes where each
possible edge is created with probability *p=0.006*. The output of
the command `er_B`

will be the edge-list of the resulting graph, where
each (undirected) edge is reported only once. In order to be useful,
such edge-list should be saved into a file. The following command:

```
$ er_B 1000 0.006 > er_B_1000_0.006.net
```

will save the resulting graph in the file er_B_1000_0.006.net. Notice the usage of the symbol ">" to redirect the output of the program to a file.

P. Erdos, & A. Rényi, "On Random Graphs I", Publ. Math. Debrecen, 6, 290 (1959)

P.Erdos, & A. Renyi, "On the evolution of random graphs" Publ. Math. Inst. Hungary. Acad. Sci., 5, 17-61 (1960)

V. Latora, V. Nicosia, G. Russo, "Complex Networks: Principles, Methods and Applications", Chapter 3, Cambridge University Press (2017)

V. Latora, V. Nicosia, G. Russo, "Complex Networks: Principles, Methods and Applications", Appendix 10, Cambridge University Press (2017)

(c) Vincenzo 'KatolaZ' Nicosia 2009-2017 `<v.nicosia@qmul.ac.uk>`

.

- www.complex-networks.net
- September 2017
- er_B(1)