Using chartjs to show categorical values on axis - Javascript Chart.js

Javascript examples for Chart.js:Axis

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Description

Using chartjs to show categorical values on axis

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <title>chart.js 2.1</title> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.1.0/Chart.bundle.min.js"></script> 
      <script type="text/javascript">
    window.onload=function(){/*from   w  w  w.  j  a  v a2s.  co m*/
var config = {
  type: 'line',
  data: {
    labels: ["January", "February", "March", "April", "May", "June", "July"],
    datasets: [{
      label: "My First dataset",
      data: [65, 0, 80, 81, 56, 85, 40],
      fill: false
    }]
  },
  options: {
    scales: {
      yAxes: [{
        ticks: {
          callback: function(value) {
            if (value === 20)
               return 'Low';
            else if (value === 50)
              return 'Medium';
            else if (value === 80)
              return 'High';
            else
              return '';
          }
        }
      }]
    }
  }
};
var ctx = document.getElementById("myChart").getContext("2d");
new Chart(ctx, config);
    }

      </script> 
   </head> 
   <body> 
      <canvas id="myChart"></canvas>  
   </body>
</html>

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