data.js

/**
 * Randomize array element order in-place.
 * Using Durstenfeld shuffle algorithm.
 */
function shuffleArray(array) {
  for (var i = array.length - 1; i > 0; i--) {
    var j = Math.floor(Math.random() * (i + 1));
    var temp = array[i];
    array[i] = array[j];
    array[j] = temp;
  }
  return array;
}

var arrayData = [{
  y: 400,
  quarters: [{
    x: 'Q1',
    y: 120
  }, {
    x: 'Q2',
    y: 90
  }, {
    x: 'Q3',
    y: 100
  }, {
    x: 'Q4',
    y: 90
  }]
}, {
  y: 430,
  quarters: [{
    x: 'Q1',
    y: 120
  }, {
    x: 'Q2',
    y: 110
  }, {
    x: 'Q3',
    y: 90
  }, {
    x: 'Q4',
    y: 110
  }]
}, {
  y: 448,
  quarters: [{
    x: 'Q1',
    y: 70
  }, {
    x: 'Q2',
    y: 100
  }, {
    x: 'Q3',
    y: 140
  }, {
    x: 'Q4',
    y: 138
  }]
}, {
  y: 470,
  quarters: [{
    x: 'Q1',
    y: 150
  }, {
    x: 'Q2',
    y: 60
  }, {
    x: 'Q3',
    y: 190