---
name: "Graph::Maker::Random"
section: "3pm"
platform: "linux"
package: "libgraph-maker-perl"
version: "0.02-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Graph::Maker::Random"
---

# Graph::Maker::Random(3pm)

Creates a random graph (using Erdos Renyi or with a specified number of edges)

## NAME

Graph::Maker::Random - Creates a random graph (using Erdos Renyi or with a specified number of edges)

## VERSION

Version 0.01

## SYNOPSIS

Creates a random graph with N nodes and with exactly M edges or connects random edges with probability PR. A random graph has N nodes and M random edges, **OR** for every pair of nodes adds an edge with probability PR (Erdos-Renyi graph). 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::Random;
        my $g = new Graph::Maker('random', N => 10, M => 2, undirected => 1);
        my $g = new Graph::Maker('random', N => 100, PR => .01, undirected => 1);
        # work with the graph
```

## FUNCTIONS

### new %params

Creates a random graph with N nodes either connecting edges with the given probability (PR) or with the specified number of edges (M); The recognized parameters are graph\_maker, N, M, and PR any others are passed onto Graph's constructor. If N is not given it defaults to 0. If PR is not given it defaults to 0. If PR is 1 or M is bigger than N\*(N-2)/2 then returns a Complete Graph. If M is not given it defaults to 0. If PR and M are both nonzero ignores M. 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.

## AUTHOR

Matt Spear, `"<batman900+cpan at gmail.com>"`

## BUGS

Please report any bugs or feature requests to `"bug-graph-maker-random at rt.cpan.org"`, or through the web interface at \<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Graph-Maker\>. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

## COPYRIGHT & LICENSE

Copyright 2008 Matt Spear, all rights reserved.

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