randomgraph.js
A small library for generating, well, random graphs. Not that many models at the moment, feel free to jump in and add some more. The algorithms were partly ported and double-checked with the Gephi implementations (thx @jacomyal for the link).
/* Erdős–Rényi (n, p) * * n .. number of nodes * p .. edge probability */graph = randomgraph.ErdosRenyi.np(150, 0.05); /* Watts-Strogatz (n, K, beta) * * n .. number of nodes * K .. mean degree (even integer) * beta .. rewiring probability [0..1] */graph = randomgraph.WS(150, 4, 0.4); /* Barabási–Albert (N, m0, M) * * N .. number of nodes * m0 .. size of connected core (m0 <= N) * M .. (M <= m0) */graph = randomgraph.BA(150, 10, 2);