highcharts-tutorial/examples/chart2.html at master · ejb/highcharts-tutorial · GitHub

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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8" />
  <title>Chart two</title>
  <script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.js"></script>
</head>
<body>
  <div id="container" style="height: 400px;"></div>
  <script src="http://code.highcharts.com/highcharts.js"></script>
  <script type="text/javascript">

  $.getJSON('http://cdn.rawgit.com/ejb/highcharts-tutorial/master/data/poll-data.json', function(data){

    // create three empty series to add our data into
    var highchartsFormat = [
      {
        name: "Conservatives",
        data: []
      },
      {
        name: "Labour",
        data: []
      },
      {
        name: "Liberal Democrats",
        data: []
      }
    ];

    // loop through each line of the spreadsheet...
    $.each(data, function(i,  row){
      // .. create a Unix timestamp for each row ...
      var dateArr = row.date.split('-');
      var timestamp = Date.UTC( +dateArr[2], +dateArr[1]-1, +dateArr[0] );
      // ... and add to the Highcharts-formatted data object
      highchartsFormat[0].data.push([ timestamp, row["CON"] ]);
      highchartsFormat[1].data.push([ timestamp, row["LAB"] ]);
      highchartsFormat[2].data.push([ timestamp, row["LIB DEM"] ]);
    });

    // then create the chart
    $('#container').highcharts({
      series: highchartsFormat,
      xAxis: {
        type: 'datetime'    // required, or the x axis is rendered as numbers
      },
      credits: {
        enabled: false    // removes Highcharts.com in bottom
      },
      title: {
        text: 'Guardian/ICM poll results over time'
      },
      yAxis: {
        title: null, // disables unnecessary title on y axis
        labels: {
          formatter: function(){            // this function is run once for each label
            if (this.isLast){
              return this.value+'%';        // add % sign to the top y axis label
            }
            return this.value;
          }
        }
      },
      colors: ['#03529E', '#9E0400', '#FDB009']     // set party colours
    });

  });

  </script>
</body>
</html>