Hi

The tests will return TRUE or FALSE.
Multiplying by the double unary (--) coerces these results to 1 and 0
respectively which are then used within the Sumproduct array
calculation.

--
Regards

Roger Govier


"Phil" wrote in message
...
The formula you have posted resolves a problem I have been having.

However, I cannot see why it works (as SUMPRODUCT multipllies
corresponding
components in the given arrays and sums the answer). How can arrays
that
don't have values be multiplied. Are the minus signs significant
here. I
notice that if you remove them the formula doesnt work

"Peo Sjoblom" wrote:

Use

=SUMPRODUCT(--(Make_Range="Ford"),--(Model_Range="Explorer"),Sum_Range)

replace the hardcoded Ford and Explorer with cells like B2 and C2 in
where
you would type the make and model thus avoiding to having to edit the
formula when you change make/model

Ranges need to be of the same size and cannot be the whole column
like
A:A as opposed to A2:A100


--

Regards,

Peo Sjoblom

"Todd" wrote in message
...
I have a file set up in database fashion that I am trying to find
the
easiest
way to summarize data using more than one criteria. I am also
looking
into
using tables. This database gets added to and resorted frequently
so I
did
not want to use Subtotals.

For instance a database of automobiles that includes Make, Model
and
several
other distinguishing fields. I was trying to use a SUMIF formula
to give
me
the total of all the Ford Explorers vs. Jeep Cherokees vs. Dodge
Rams etc.
I could not figure out how to actually write a nested SUMIF formula
on
both
the Make and Model fields.

I am also looking into using tables.

Todd

"chalky" wrote:


Yes. Upto 7 i believe but how are you planning on doing it?


--
chalky
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