use x-axis as grouped categories in line chart - Javascript highcharts

Javascript examples for highcharts:Line Chart

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Description

use x-axis as grouped categories in line chart

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <title>Highcharts Demo</title> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> 
      <script type="text/javascript">
$(function () {/* w w w  .  j  a v a  2s .  c  o m*/
      function renderBottomLine() {
       var chart = this,
          axis = chart.xAxis[0],
          line = axis.bottomLine,
          x1 = chart.plotLeft,
          y = chart.plotTop + chart.plotHeight + axis.options.tickLength,
          x2 = x1 + chart.plotWidth,
          path = [
            'M', x1, y,
            'L', x2, y
          ];
      if (!line) {
        axis.bottomLine = chart.renderer.path(path).attr({
          'stroke-width': 1,
          stroke: '#ccd6eb'
        }).
        add();
      } else {
         line.animate({
           d: path
        });
      }
    }
    Highcharts.chart('container', {
        chart: {
           events: {
             load: renderBottomLine,
            redraw: renderBottomLine
          }
        },
        xAxis: {
            categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
           tickLength: 30
        },
        series: [{
            data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
        }]
    });
});

      </script> 
   </head> 
   <body> 
      <script src="https://code.highcharts.com/highcharts.js"></script> 
      <div id="container" style="height: 400px"></div>  
   </body>
</html>

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