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Posted to microsoft.public.excel.worksheet.functions
Bob Phillips
 
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Default Count Formula Problem

=sumproduct(--(A1:A100<""),--(B1:B100=""))

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HTH

Bob Phillips

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"Paputxi" wrote in message
...
Using the example below, I need a worksheet formula that will

automatically
determine the number of blank cells in column B based on the number of

rows
in Col A containing entries, which can vary as more entries are added

after
the last row. So the formula needs to automatically determine that number

of
rows in column A for the whole column, not just a select number of rows.

In
this example the number of rows is 5. Fortunately, the first null entry

in
Col A will indicate the end of the data in that column. So there are no
nulls in Col A before the last entry. In my example, the answer is 3 (for
nulls found in Col B rows 2, 3 and 5). Any ideas? Thanks in advance.

Col A Col B
Row 1 10 X
Row 2 20
Row 3 25
Row 4 100 x
Row 5 15