我有这些数据,我必须按价格分组,并检查数据的范围和连续性
date price
2014-01-01 10
2014-01-02 10
2014-01-03 10
2014-01-05 20
2014-01-07 30
2014-01-08 40
2014-01-09 50
2014-01-10 30
输出应该是这样的
2014-01-01 2014-01-03 10
2014-01-05 2014-01-05 20
2014-01-07 2014-01-07 30
2014-01-08 2014-01-08 40
2014-01-09 2014-01-09 50
2014-01-10 2014-01-10 30
我试过到目前为止
var result = list
.OrderBy(a => a.Date)
.GroupBy(a => a.Price)
.Select(x => new
{
DateMax = x.Max(a => a.Date),
DateMin = x.Min(a => a.Date),
Count = x.Count()
})
.ToList()
.Where(a => a.DateMax.Subtract(a.DateMin).Days == a.Count)
.ToList();
我不确定这是否会处理连续日期。所有日期都是独一无二的!