Excel，统计连续多少个月

Question

我有原始数据显示有人每月出现多次，而且超过一个月。我想知道这个人的值连续多少个月（从今天开始）为 0。我该如何为此编写公式？

COUNTIF(s) PERSON IN A2 is found in RAWDATA and VALUE of SCORE COLUMN IN RAW DATA is ZERO and COUNT OF MONTHS IN A ROW FROM TODAY THAT IT IS ZERO"

A 在 5 月、4 月、3 月和 2 月的得分为零，因此结果应为 4（从最大日期往回计算）

Name    Date    Score
Person A    1/10/2017   1
Person A    1/20/2017   1
Person A    1/30/2017   1
Person A    1/31/2017   1
Person A    2/10/2017   1
Person A    2/20/2017   0
Person A    2/24/2017   1
Person A    2/28/2017   0
Person A    3/10/2017   1
Person A    3/20/2017   1
Person A    3/31/2017   0
Person A    2017-04-31  0
Person A    4/10/2017   1
Person A    4/20/2017   1
Person A    4/28/2017   1
Person A    5/28/2017   0
Person A    5/10/2017   1
Person A    5/26/2017   1
Person A    5/10/2017   1
Person A    5/19/2017   1
Person A    5/30/2017   1
Person A    11/3/2016   1
Person A    11/11/2016  0
Person A    11/22/2016  1
Person A    12/9/2016   1
Person A    12/9/2016   1
Person A    12/19/2016  1
Person A    12/16/2016  1
Person A    2/10/2017   N/A
Person A    2/20/2017   1
Person A    2/24/2017   1
Person A    3/10/2017   1
Person A    3/20/2017   1
Person A    3/28/2017   N/A
Person A    4/20/2017   N/A
Person A    4/25/2017   N/A
Person A    5/30/2017   N/A
Person A    11/28/2016  N/A
Person A    12/6/2016   1

Answer 1

确实很棘手。

我建议的解决方案是：

(a) Find the date D1 of the  latest zero score

(b) Going back month by month from D1, find the latest month which does not contain a zero score.

(a) 很简单 - 使用聚合找到 A 的分数为零的最新日期

=AGGREGATE(14,6,RawData!$C:$C0/((RawData!$A:$A0=$A)*(RawData!$D:$D0=0)),1)

(b) 更难。我必须开发一个月份数组，然后使用 COUNTIFS 查看每个月 A 的零分有多少，然后使用 MATCH 查看最近一个月没有零分的时间有多远。所以如果你想回去一年说

=MATCH(0,COUNTIFS(RawData!$C:$C0,"<"&DATE(YEAR($B2),MONTH($B2)-ROW(:)+1,1),
RawData!$C:$C0,">="&DATE(YEAR($B2),MONTH($B2)-ROW(:),1),RawData!$A:$A100,$A2,RawData!$D:$D0,0),0)

使用 CtrlShiftEnter.

作为数组公式输入

请注意，我的日期在 C 列中，因为我必须将它们转换为 dd-mm-yyyy，而我的分数在 D 列中。

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