Count Unique values with a condition
array-formulas, excel, excel-formula, formula, pivot-table
Solution
Assuming no more than 100 rows try this "array formula" to count the different names in A2:A100 where there is a 1 in the same row in B2:B100:
`=SUM(IF(FREQUENCY(IF(B2:B100=1,IF(A2:A100<>"",MATCH(A2:A100,A2:A100,0))),ROW(A2:A100)-ROW(A2)+1),1))`
confirmed with `CTRL+SHIFT+ENTER`
Note that I say different not unique as the two are not the same
Problem
In column A I have list of different names. In column B, I have values either 0 or 1. I want to get a count of all the unique names from column A which have 1 in column B. Using below array formula I am able count unique names but not able to apply condition on column B. ``` =SUM(1/COUNTIF(A:A,A:A)) ```