Excel Formula: Count Unique Values in a Row Based on Corresponding Value in Another Row
问题 I've been trying to get this one for quite a while and I've tried a few different approaches and can't get the result I'm looking for with any of them. I have a dataset similar to the below in Excel (apologize for the formatting, I can't yet post images): Manager 1 Manager 1 Manager 2 Manager 2 Issuer 1 0 0 0 0 Issuer 2 100 100 0 100 Issuer 3 100 0 100 0 Issuer 4 0 0 0 0 I'm trying to count the number of unique Issuers associated with each Manager ("associated" being defined as having a value