<colgroup><col><col span="2"></colgroup><tbody>
W1-A
1
1
W1-A
2
1
W1-A
3
1
W1-A
1
2
W1-A
1
3
W1-A
3
2
W1-A
4
1
W1-A
5
1
W1-A
6
1
</tbody>
I am trying to create a formula for the 3rd column. The 3rd column counts the occurrences of the same combinations in the first two...