Function average

jquery.scrollify.js:187–197

(num)

  function isAccelerating(samples) {
    function average(num) {
      var sum = 0;

      var lastElements = samples.slice(Math.max(samples.length - num, 1));

      for(var i = 0; i < lastElements.length; i++){
          sum += lastElements[i];
      }

      return Math.ceil(sum/num);
    }

    var avEnd = average(10);
    var avMiddle = average(70);