Sumproduct with Date as a field
I show a table below. I must count how much time 4 Jane occurs in jan..
If column A were simply Jan I include/understand how with do it but how I make-the with the dates in this help of the format... please...
A B
1/16/08 2 Jam
1/12/08 4 Jane
1/6/08 4 Jane
5/12/07 CCU
5/5/07 2 cohen
4/5/07 4 Jane
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