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er_B(1) -- Sample a random graph from the Erdos-Renyi model B
======
## SYNOPSIS
`er_B` <N> _p_ [<fileout>]
## DESCRIPTION
`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.
## PARAMETERS
* <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.
## EXAMPLES
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.
## SEE ALSO
er_A(1), ws(1)
## REFERENCES
* 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)
## AUTHORS
(c) Vincenzo 'KatolaZ' Nicosia 2009-2017 `<v.nicosia@qmul.ac.uk>`.
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