/**
 * Calculate the distances by using the numbers, strings and dates.
 * @param  {node} source
 * @param  {node} target
 * @param  {array} properties - the properties of the nodes.
 * @return {number}            the distance between source and target nodes.
 */
function calculateDiceDissimilarity(source, target, properties, normArgs) {
  var notShared = 0.0;

  // console.log(properties);
  // Iterate through every column of data
  for (var i = 0; i < properties.length; i++) {
    property = properties[i];
    if (property.toLowerCase() !== "class" && property.toLowerCase() !== "app" && property.toLowerCase() !== "user" && property.toLowerCase() !== "weekday") {
      var s = source[property],
        t = target[property];

      if (s !== t) {
        notShared++;
      }
    }
  }

  // console.log(Math.sqrt(sumDiff)/cols);
  // console.log(cols);
  return notShared / (notShared + 2 * (properties.length - notShared));
}