                        },
                        style: api.style({
                            fill: color,
                            stroke: echarts.color.lift(color)
                        })
                    };
                }

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