javascript - When the difference in echarts data is very small, make a very obvious trend chart. Which parameter should be controlled?

Question

option = {
    title: {
        text: '堆叠区域图'
    },
    tooltip : {
        trigger: 'axis',
        axisPointer: {
            type: 'cross',
            label: {
                backgroundColor: '#6a7985'
            }
        }
    },
    legend: {
        data:['联盟广告']
    },
    toolbox: {
        feature: {
            saveAsImage: {}
        }
    },
    grid: {
        left: '3%',
        right: '4%',
        bottom: '3%',
        containLabel: true
    },
    xAxis : [
        {
            type : 'category',
            boundaryGap : false,
            data : ['周一','周二','周三','周四','周五','周六','周日']
        }
    ],
    yAxis : [
        {
            type : 'value'
        }
    ],
    series : [
        {
            name:'联盟广告',
            type:'line',
            stack: '总量',
            areaStyle: {normal: {}},
            data:[220, 220.1, 220.2, 220.2, 220.3, 220.4, 310]
        },

    ]
};

The difference in quantity is all after the decimal point. Basically, there is no difference in this picture. Which parameter can be controlled to amplify this difference

Make it similar to this one with a relatively large gap

Thank you

Answer 1

Find the minimum value of the data and set the y-axis minimum value to the minimum value of your data