tooltip.setFormatterJsFunc("function() {"
+ " return '<b>'+ this.series.name +', age '+ this.point.category +'</b><br/>' + "
+ " 'Population: '+ Highcharts.numberFormat(Math.abs(this.point.y), 0); "
+ "}");
SeriesConfig series = new SeriesConfig();
series.setStacking(Stacking.NORMAL);
chartConfig.addSeriesConfig(series);
InvientCharts chart = new InvientCharts(chartConfig);
XYSeries seriesData = new XYSeries("Male");