Non-continuous data

Null or missing series values will be skipped when rendering.

/* data stolen from http://howmanyleft.co.uk/vehicle/jaguar_'e'_type */
var day_data = [
  {"period": "2012-10-01", "licensed": 3407},
  {"period": "2012-09-30", "sorned": 629},
  {"period": "2012-09-29", "sorned": 618},
  {"period": "2012-09-20", "licensed": 3246, "sorned": 661},
  {"period": "2012-09-19", "licensed": 3257, "sorned": null},
  {"period": "2012-09-18", "licensed": 3248},
  {"period": "2012-09-17", "sorned": 660},
  {"period": "2012-09-16", "sorned": 676},
  {"period": "2012-09-15", "licensed": 3201, "sorned": 656},
  {"period": "2012-09-10", "licensed": 3215}
];
Morris.Line({
  element: 'graph',
  data: day_data,
  xkey: 'period',
  ykeys: ['licensed', 'sorned'],
  labels: ['Licensed', 'SORN'],
  /* custom label formatting with `xLabelFormat` */
  xLabelFormat: function(d) { return (d.getMonth()+1)+'/'+d.getDate()+'/'+d.getFullYear(); },
  /* setting `xLabels` is recommended when using xLabelFormat */
  xLabels: 'day'
});