whiskerLength: Number/String

whiskerLength sets the length of Whisker in Error, Box and Whisker Charts. Value can either be in pixels (number – ex: 100) or percent (string – ex: “80%”). Percent values are relative to the dataPointWidth.

• Values should always be positive.
• Can go upto a maximum of dataPointWidth.
• Works only in Error / Box and Whisker Charts.

var  chart =  new  CanvasJS.Chart("container",
{
 .
 .
  data: [{
   type: "error",
   whiskerLength: 5,
 
  },
 ]
 .
 . 
});
chart.render();