如何动态调整Morris折线图y轴

// 获取数据
var data = [
  { year: '2015', value: 100 },
  { year: '2016', value: 200 },
  { year: '2017', value: 150 },
  { year: '2018', value: 300 },
  { year: '2019', value: 250 }
];

// 初始化折线图
var lineChart = Morris.Line({
  element: 'line-chart-container',
  data: data,
  xkey: 'year',
  ykeys: ['value'],
  labels: ['Value']
});

// 计算y轴范围
var minValue = Math.min.apply(Math, data.map(function(d) { return d.value; }));
var maxValue = Math.max.apply(Math, data.map(function(d) { return d.value; }));

// 更新折线图配置
lineChart.options.ymin = minValue;
lineChart.options.ymax = maxValue;

// 刷新折线图
lineChart.redraw();