clustergrammer/src/dendrogram/run_fisher_exact_clust.js

This is a clustergram implemented in D3.js. I started from the example http://bost.ocks.org/mike/miserables/ and added the following features

var fisher = require('fishertest');

module.exports = function run_fisher_exact_clust(k, n, big_k, big_n){

  // Fisher Exact Test
  ///////////////////////////
  // k: number of cat-nodes drawn in cluster
  // n: number drawn in cluster
  // big_k: total number of cat-nodes
  // big_l: total number of nodes

  // contingency table
  /////////////////////
  var a = k;
  var b = big_k - k;
  var c = n - k;
  var d = big_n + k - n - big_k;

  var ft = fisher(a, b, c, d);

  return ft.toPrecision();

};