I have an Excel Table (Excel 2016) that I use this array formula to count the number of filtered rows of unique values.
=SUM(IF(FREQUENCY(IF(SUBTOTAL(3,OFFSET(A29,ROW(A29:A11459)-ROW(A29),0)),A29:A11459),A29:A11459),1))-1
So it counts the unique numbers in Col A with each filter.
What I...