I have a chart which shows points, when I hover over these points the co-ordinates of the point is shown.
I want to add a third line to this tooltip showing the date associated with the point. I have added this date to the raw data fed to the graph but I'm not sure how to make it show in this box? Basically I want to add a different value into MY DATE VALUE below for every point. How can this be done?
tooltip: {
borderRadius: 10,
formatter: function () {
return 'The value for <b>' + this.x +
'</b> is <b>' + this.y + '</b>' + MY DATE VALUE;
}
},
Thanks!