获取一个数字出现在其他数字之间的平均次数 [英] Getting the average number of times a number appears between other numbers

问题描述

在我的单元格中，我有三个可能的不同值，1,0或ND.我想获得1到0之间出现0的平均次数. 但是我似乎无法理解，我一直在玩=AVERAGE(COUNTIF(A60:C60, 0)).看起来很简单，但我无法弄清楚. 因此，我希望整个行中1到0之间出现0的平均次数.

想象每个单元格是一天. 1表示失败，0表示通过.如果该单元在当天发生故障，则将在当晚修复.我要找出的是，当我修复发生故障的单元时，该单元再次发生故障之前经过的平均天数是多少?

解决方案

仅显示公式的公式的解决方案

此解决方案不需要VBA，但需要一个帮助行.

想象一下第1行中的以下数据.

第2行是用于计算平均值的助手行:

• A2为空.
• B2编写公式=IF(B1=1,COUNTIF($A$1:B1,0)-SUM($A$2:A2),"")并将其复制到右侧.

然后使用=AVERAGE(2:2)

计算平均值

第2行中的数字是第1行中1前面的0计数.所有ND都将被忽略.

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但这与

是相同的结果

=COUNTIF(1:1,0)/COUNTIF(1:1,1)   '<-- = average

因为=AVERAGE实际上是零的总和除以1的数量.因此，您只需要这个公式，甚至不需要帮助列.

In my cells I have three possible different values, 1 ,0 or ND. I want to get the average number of times 0 appears between the 1s. But I cannot seem to get it, I have been playing around with =AVERAGE(COUNTIF(A60:C60, 0)). It seems simple but I cannot figure it out. So I want the average number of times that 0 appears between 1s in the whole row.

imagine each cell is a day. 1s represent fail and 0 represent pass. If the cell has failed that day it is fixed that night. what i want to find out is when i fix a failed cell what is the average amount of days pass before that cell fails again

解决方案

A formula only solution to show the idea of how to calculate it

This solution doen't need VBA but a helper row.

Imagine the following data in row 1.

Row 2 is a helper row to calculate the average:

• A2 is empty.
• B2 write the formula =IF(B1=1,COUNTIF($A$1:B1,0)-SUM($A$2:A2),"") and copy it to the right.

The average is then calculated with =AVERAGE(2:2)

The numbers in row 2 are the count of 0 that are in front of the 1 in row 1. All ND get just ignored.

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But this is the same result as

=COUNTIF(1:1,0)/COUNTIF(1:1,1)   '<-- = average

Because the =AVERAGE is actually the sum of zeros devided by the amount of ones. So this formula is all you need, even no helper column is needed.

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