Count of last consecutive repetitive values in a column

[JONVEN]

Hello Excel Masters,

I have a problem which I am stuck with.. I have checked the forum and could not find the answer, even though I am quite close with to get the answer with this formula (Count number of times a value appears in role??) I am still looking for suggestion.

So, let's say a have a column with values:
Y
N
Y
Y
Y
N
N
N
I need a formula which would count number of last (not MAX) Ns in a row,- in this case this would be 3

In case of:
Y
Y
Y
N
N
Y
The formula should return 0, because last value is not N

Also would be great if formula could still count a number of last Ns in a row if there's 0s or blanks after Ns. In case of:
Y
N
N
Y
N
N
N
0/Blank
0/Blank
The formula should return 3, because before 0s/Blanks there was 3 consecutive Ns.

Hope the question is clear and someone could help me.
Thanks in advance.

 

[Fluff]

How about

Fluff.xlsm
	A	B
1	Yes/No
2	y	3
3	n
4	y
5	n
6	n
7	n
8
9
10
Daily

Cell Formulas
Range	Formula
B2	B2	=COUNTA(A:A)-LOOKUP(2,1/(($A$2:$A$100<>"N")*($A$2:$A$100<>"")),ROW($A$2:$A$100))

 

[JONVEN]

Cannot get exactly the results I am looking for, let's say I have:

row no.	B
1	Y
2	N
3	Y
4	N
5	N
6	N
7	0
8	0
9	0

I would like to get 3 as an answer (with your formula I get 0), because before 0s there are 3 Ns.
0's are here because this data will be updated once it is available and it will become either Y or N
Also I am not quite sure I understand the range, in my case the range is fixed, in this case B2:B9

 

[Fluff]

I am not quite sure I understand the range, in my case the range is fixed, in this case B2:B9

You never said that, so how was I to know.
Can you ever have blank cells at the end of the data rather than zeros?

 

[JONVEN]

Yes, I believe I can sort something out and have blanks instead of zeros, thanks.

 

[Fluff]

If it will always be zeros & not blanks then you can use

=COUNTIFS(B1:B9,"<>0")-LOOKUP(2,1/((B2:B9<>"N")*(B2:B9<>0)),ROW(B2:B9))

 

[JONVEN]

Let's say a have data:

row no.	B
1​	Y
2​	N
3​	Y
4​	N
5​	N
6​	N
7​	0​
8​	0​
9​	0​
10​	Y
11​	Y
12​	Y
13​	N
14​	N
15​	N
16​	N
17​	0​
18​	0​
19​	0​
20​	0​

I use formula =COUNTIFS(B2:B21,"<>0")-LOOKUP(2,1/((B3:B21<>"N")*(B3:B21<>0)),ROW(B3:B21)) and get the result of 0, even though I expect to get 4

 

[Fluff]

Will you please provide some data showing EXACTLY what you have.

MrExcel has a tool called “XL2BB” that lets you post samples of your data that will allow us to copy/paste it to our Excel spreadsheets, so we can work with the same copy of data that you are. Instructions on using this tool can be found here: XL2BB Add-in

Note that there is also a "Test Here” forum on this board. This is a place where you can test using this tool (or any other posting techniques that you want to test) before trying to use those tools in your actual posts.

It is impossible to write a formula that works when you keep moving the goal posts.

 

[JONVEN]

Maybe I could send you my sheet and all the details what I want to do through e-mail, because my sheet is quite wide, not sure whether it is ok to post such a big table.

 

[Fluff]

Maybe I could send you my sheet and all the details what I want to do through e-mail,

Fraid not, that is against the board rules. Everything must remain in the thread for all to see.