I am trying to catch an onlick event on a bubble in bubble chart. I want to log the label of clicked bubble into the console. I have written a function to do the job which actually looks like this

```
$("#myChart").click(function(evt) {
    var activePoints = myBubbleChart.getElementAtEvent(evt);
    console.log(activePoints.label);
}); 

```

Every time I click on a bubble this function logs "undefined" into console. I have even tried `getBarsAtEvent` and `getSegmentsAtEvent` none of them worked. What's wrong in my code? And can anybody please tell me how can I get the label value of bubble which I clicked?