     x2: lowPoint[0] + halfWidth, y2: lowPoint[1]
                            },
                            style: style
                        }]
                    };
                }

                var option = {
                    tooltip: {
                        trigger: 'axis'
                    },
                    legend: {
                        data: ['bar', 'error']
                    },
                    dataZoom: [{
                        type: 'slider',
                       