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Counting unique entries in a column, not excluding nulls

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  1. 05-30-2013, 05:48 PM #1
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    Counting unique entries in a column, not excluding nulls

    Hi there,

    I'm trying to count the # of unique entries in a column, and found this formula, but can't get it to work. Let's just say 10000 is big enough right now.

    =SUM(IF(FREQUENCY(IF(LEN(A2:A10000)>0,MATCH(A2:A10000,A2:A10000,0),""), IF(LEN(A2:A10000)>0,MATCH(A2:A10000,A2:A10000,0),""))>0,1))
    also attaced the file.

    Thanks for your help.
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