高图：工具提示中的有效小数

Question

I am trying to change the number of significant decimals. By default is 7, so I am having many 0.0000000s for values smaller than 0.0000001.

I tried plotOptions.series.dataLabels.formatter and plotOptions.line.dataLabels.formatter , but they didn't work.

Then, I tried plotOptions.line.tooltip.formatter but this only accepts HTML, and I'd like to set something like

function() {
    return Highcharts.numberFormat(this.y,10);
}

Answer 1

I run example with 20 decimal, see example http://jsfiddle.net/qPUZw/

 tooltip:{
            formatter:function(){
            return Highcharts.numberFormat(this.y,20,',')
            }
        },

Seems to working fine.