function computeNodeValues()

in app/assets/javascripts/sankey.js [268:276]


  function computeNodeValues() {
    nodes.forEach(function(node) {
      if (!(node.value)) //if not already given
    node.value = Math.max(
        d3.sum(node.sourceLinks, value),
        d3.sum(node.targetLinks, value)
      );
    });
  }