如何使用let从值>0的分组数据中计算平均值

const groupedData = data.reduce((groups, item) => {
  if (item.value > 0) {
    const groupKey = item.value; // 根据需要选择分组的属性
    if (!groups[groupKey]) {
      groups[groupKey] = [];
    }
    groups[groupKey].push(item);
  }
  return groups;
}, {});

const averages = Object.keys(groupedData).map((groupKey) => {
  const group = groupedData[groupKey];
  const sum = group.reduce((total, item) => total + item.value, 0);
  const average = sum / group.length;
  return average;
});