横向柱状图markLine不可用

描述:当前是关于Echarts图表中的 柱状图 示例。
 
            option = {
    dataset: {
        source: [
            ['score', 'amount', 'product'],
            [89.3, 58212, 'Matcha Latte'],
            [57.1, 78254, 'Milk Tea'],
            [74.4, 41032, 'Cheese Cocoa'],
            [50.1, 12755, 'Cheese Brownie'],
            [89.7, 20145, 'Matcha Cocoa'],
            [68.1, 79146, 'Tea'],
            [19.6, 91852, 'Orange Juice'],
            [10.6, 101852, 'Lemon Juice'],
            [32.7, 20112, 'Walnut Brownie']
        ]
    },
    grid: {containLabel: true},
    xAxis: {name: 'amount'},
    yAxis: {type: 'category'},
    series: [
        {
            type: 'bar',
            encode: {
                x: 'amount',
                y: 'product'
            },
            // data:[2.6, 5.9, 9.0, 26.4, 28.7, 70.7, 175.6, 182.2, 48.7, 18.8, 6.0, 2.3],
            markLine: {
                silent: false,
                symbol: ['circle', 'arrow'],
                data: [
                    {
                        name: '平均值',
                        valueDim: 'amount',
                        type: 'max'
                    }
                ]
            }
        }
    ]
};