Excel ：获取每组出现次数最多的值

Question

我有一个 table ( excel ) 有两列 ( 时间 'hh:mm:ss' , 值 ) 我想为每组行获取最频繁的值。

例如我有

Time    | Value
4:35:49 | 122
4:35:49 | 122
4:35:50 | 121
4:35:50 | 121
4:35:50 | 111
4:35:51 | 122
4:35:51 | 111
4:35:51 | 111
4:35:51 | 132
4:35:51 | 132

而且我想获得每次出现频率最高的值

Time    | Value
4:35:49 | 122
4:35:50 | 121
4:35:51 | 132

提前致谢

更新 @scott with helper 列的第一个答案是正确的

See the pic

Answer 1

这样行吗？我还没有尝试并受到启发 here

;WITH t3 AS
(
   SELECT *,
         ROW_NUMBER() OVER (PARTITION BY time ORDER BY c DESC, value DESC) AS rn
   FROM (SELECT COUNT(*) AS c, time, value FROM t GROUP BY time, value) AS t2
)
SELECT *
FROM t3
WHERE rn = 1

Answer 2

您可以使用辅助列：

首先它需要一个辅助列，所以在 C 中我输入了

=COUNTIFS($A:$A,A2,$B:$B,B2)

然后在 F2 中输入以下数组公式：

=INDEX($B:$B,MATCH(MAX(IF($A:$A=E2,IF($C:$C = MAX(IF($A:$A=E2,$C:$C)),$B:$B))),$B:$B,0))

为数组公式，必须用Ctrl-Shift-Enter确认。然后复制下来。

我是这样设置的：

Answer 3

这是在 MS Access 中执行此操作的一种方法：

select tv.*
from (select time, value, count(*) as cnt
      from t 
      group by time, value
     ) as tv
where exists (select 1
              from (select top 1 time, value, count(*) as cnt
                    from t as t2
                    where t.time = t2.time
                    group by time, value
                    order by count(*) desc, value desc
                  ) as x
              where x.time = tv.time and x.value = tv.value
             );

MS Access 不支持 window 函数或 CTE 等功能，这些功能使此类查询在其他数据库中更容易。

Excel ：获取每组出现次数最多的值

Excel : Get the most frequent value for each group

excel

ms-access

data-processing