A JS implementation of creating a Erdos-Renyi (random) network. Planning to add others.

networkGenerators.js

function getRandomInt(min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

function erdosRenyi(nodesNum,directedness,prob) {
  // create nodes list
  var nodes = []
  for (var i = 0; i < nodesNum; i++) {
    nodes.push(i);
  }
  
  // init edges
  var edges = [];
  
  for (var i = 0; i < nodes.length; i++) {
    for (var j = i+1; j < nodes.length; j++) {
      var pchance = Math.random()
      if (pchance > prob) {
        if (directedness === 0) {
          edges.push({"source":i,"target":j,"directedness":0});
        }
        else {
          var dchance = Math.random();
          if (dchance > prob) {
            edges.push({"source":i,"target":j,"directedness":1})
            edges.push({"source":j,"target":i,"directedness":1})
          }
          else {
            edges.push({"source":i,"target":j,"directedness":1})
            // need to fix - can't be i or j!
            var rando = getRandomInt(0,nodes.length);
            edges.push({"source":getRandomInt(0,nodes.length),"target":i,"directedness":1})
          }
        }
      }
    }
  }
  
  return {"nodes":nodes.map(function(m) { return {"name":m.toString()};}), "edges":edges};
  
}

erdosRenyi(40,1,0.4)