Graph::Maker::SmallWorldWS(3pm)

Usage

Creates a small world graph according to (Newman and) Watt and Strogatz's model. A small world graph has an approximate power law degree distribution and a high clustering coefficient. If the graph is directed then edges are added in both directions to create an undirected graph.

        use strict;
        use warnings;
        use Graph;
        use Graph::Maker;
        use Graph::Maker::SmallWorldWS;
        my $g = new Graph::Maker('small_world_ws', N => 10, K => 2, PR => .1, undirected => 1);
        my $g2 = new Graph::Maker('small_world_ws', N => 10, K => 2, PR => .1, keep_edges => 1, undirected => 1);
        # work with the graph

Version

Version 0.01

Functions

new %params

Creates a small world graph with N nodes, K initial connections, and a probability of rewiring of PR according to Watts and Strogats. The recognized parameters are N, K, PR, graph_maker, and keep_edges any others are passed onto Graph's constructor. If N is not given it defaults to 0. If K is not given it defaults to 0. If PR is not given it defaults to 0. keep_edges uses the Newman, Watts and Strogatz model where "rewiring" adds an edge between two random nodes, instead of removing and then adding. If graph_maker is specified it will be called to create the Graph class as desired (for example if you have a subclass of Graph), this defaults to create a Graph with the parameters specified.

Copyright & license

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

Releases

Unchanged in 2 releases since Debian 12 (Bookworm).

12–13