Highcharts - Logarithmic Axis Chart


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Following is an example of a logarithmic chart.

We have already seen the configuration used to draw a chart in Highcharts Configuration Syntax chapter. Now, let us discuss an example of a logarithmic chart.

Configurations

Configure the yAxis.type to be 'logarithmic'. It defines the type of axis. Options are "linear", "logarithmic", "datetime" or "category". Here, the default value is linear.

yAxis

var yAxis = {
   type: 'logarithmic',
   minorTickInterval: 0.1
};

Example

highcharts_line_logarithmic.htm

<html>
   <head>
      <title>Highcharts Tutorial</title>
      <script src = "https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js">
      </script>
      <script src = "https://code.highcharts.com/highcharts.js"></script>  
   </head>
   
   <body>
      <div id = "container" style = "width: 550px; height: 400px; margin: 0 auto"></div>
      <script language = "JavaScript">
         $(document).ready(function() {  
            var title = {
               text: 'Logarithmic axis demo'   
            };
            var xAxis = {
               tickInterval: 1
            };
            var yAxis = {
               type: 'logarithmic',
               minorTickInterval: 0.1
            };
            var tooltip = {
               headerFormat: '<b>{series.name}</b><br>',
               pointFormat: 'x = {point.x}, y = {point.y}'
            };
            var plotOptions = {
               spline: {
                  marker: {
                     enabled: true
                  }
               }
            };
            var series = [{
               name: 'data',
               data: [1, 2, 4, 8, 16, 32, 64, 128, 256, 512],
               pointStart: 1
            }];     
      
            var json = {};   
            json.title = title;   
            json.tooltip = tooltip;
            json.xAxis = xAxis;
            json.yAxis = yAxis;  
            json.series = series;
            json.plotOptions = plotOptions;
            $('#container').highcharts(json);
         });
      </script>
   </body>
   
</html>

Result

Verify the result.

highcharts_line_charts.htm
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