Can I use two different formatters for highchart tooltips?

Question

I have a highcharts table with two data series that use named values. In my tooltips for one series, I want to reference a data point from the series. So the solution in this answer: How to use a different formatter on Highcharts in each curve of the same graphic? doesn't help me. I need more than just tooltipText, I need a formatter:

For one:

formatter: function() {
    return this.x + ': ' + this.series.name +
    '<br> $' + Highcharts.numberFormat(this.y, 0);
     }

And for the other:

formatter: function() {
    return 'In ' + this.x + ' the median value was' + this.median + 
    'and the total $' + Highcharts.numberFormat(this.y, 0);                        
 }

Caitlyncaitrin

Answer 1

Inside formatter this reffers to the focused serie, you can add an if/else inside the formatter and return a string for each one, like the following.

tooltip: {
    shared: false,
    formatter: function() {
        var text = '';
        if(this.series.name == 'MSFT') {
            text = this.x + ': ' + this.series.name +
                   '<br> $' + Highcharts.numberFormat(this.y, 0);
        } else {
            text = 'In ' + this.x + ' the median value was' + this.median +
                   'and the total $' + Highcharts.numberFormat(this.y, 0);
        }
        return text;
    }
}

demo

Prank

+1, thanks - though in my opinion, it's better to use this.series.options.id instead of this.series.name so it does not rely on something that might easily change. The id can be set when initializing the series. – Internationalize

Answer 2

You can easily define a toolip formatter for each series - see here: http://api.highcharts.com/highcharts/plotOptions.series.tooltip

{
  tooltip: {
          shared: true
  },
  series: {
     name: 'some series name',
     data: mydata,
     tooltip: {
        valueSuffix: ' bar'
     }
  }
}

Example: http://jsfiddle.net/28qzg5gq/

Creaky

That is not a formatter, it's just suffixes. Adding a formatter in the config object of only one series must be done via the pointFormatter function - example. – Loreeloreen

Answer 3

Here's an example. The fiddle example is here:

tooltip: {
            formatter: function () {
                var s = '<b>' + Highcharts.dateFormat('%A, %b %e, %Y', this.x) + '</b>';

                $.each(this.points, function () {
                    s += '<br/>1 USD = ' + this.y + ' EUR';
                });

                return s;
            }
        },

Yoakum