er_A - Sample a random graph from the Erdos-Renyi model A
er_A N K [fileout]
er_A samples a random graph with N nodes and K edges from the
Erdos-Renyi model A, i.e. the ensemble of random graphs where K links
are placed uniformly at random among N nodes. 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.
Number of nodes in the final graph.
Number of edges in the final graph.
The (optional) name of the filename where the edge list of the graph will be saved.
The following command:
$ er_A 1000 3000
samples an undirected random network with N=1000 nodes and K=3000
edges using the Erdos-Renyi model A. The output of the command
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_A 1000 3000 > er_A_1000_3000.net
will save the resulting graph in the file er_A_1000_3000.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