axisYIndex: Number

Setting axisYIndex lets you choose to which Y axis the dataSeries should be attached to.
In case of Multi-Series or Combinational Charts, one can assign some series to first Y axis and rest to another axis.

This is helpful when dataSeries objects use different unit of measurement or range of data. By default, all series are plotted against first axis.

• axisYIndex is applicable only when axisY is array of axis objects.
• When axisYIndex value is more than the number of Y-axis, it falls back to 0.

var  chart =  new  CanvasJS.Chart("container",
{
 .
 .
 data: [{
   axisYIndex: 1, 
  }
],
 .
 . 
});
chart.render();