Grouping Legends in Highcharts

Question

I have two stacked bar charts, but all the legends (of both bars) are displayed together. I want to group the legends based on the items stacked in the bar. can some one help me?

$(function () {
        $('#container').highcharts({

            chart: {
                type: 'bar'
            },

            title: {
                text: 'Total fruit consumtion, grouped by gender'
            },

            xAxis: {
                categories: ['Apples', 'Oranges', 'Pears', 'Grapes', 'Bananas']
            },

            yAxis: {
                allowDecimals: false,
                min: 0,
                title: {
                    text: 'Number of fruits'
                }
            },

            tooltip: {
                formatter: function() {
                    return '<b>'+ this.x +'</b><br/>'+
                        this.series.name +': '+ this.y +'<br/>'+
                        'Total: '+ this.point.stackTotal;
                }
            },

            plotOptions: {
                bar: {
                    stacking: 'normal'
                }
            },

            series: [{
                name: 'John',
                data: [5, 3, 4, 7, 2],
                stack: 'male'
            }, {
                name: 'Joe',
                data: [3, 4, 4, 2, 5],
                stack: 'male'
            }, {
                name: 'Jane',
                data: [2, 5, 6, 2, 1],
                stack: 'female'
            }, {
                name: 'Janet',
                data: [3, 0, 4, 4, 3],
                stack: 'female'
            }]
        });
    });

I have similar type of bar. and i want to group janet and jane together as a group and joe and john as another group.

Answer 1

Based on the reference example you linked to, you can do this with the new series 'linkedTo' property in version 3.

http://api.highcharts.com/highcharts#plotOptions.series.linkedTo

updated example: http://jsfiddle.net/jlbriggs/6gw5P/2/

linkedTo:':previous'