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Summing matrix values based on X & Y axis values

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    Summing matrix values based on X & Y axis values

    The simplified example below is intended to calculate the sums from the data values in the upper data set and place them in the appropriate cells in the lower summary table.

    Raw Data
    Apr May Jun Jul
    Yes 2 4 6 8
    No 1 2 3 4
    Yes 4 8 12 16


    Summation
    Apr May Jun Jul
    Yes 6 12 18 24
    No 1 2 3 4

    I would like to find a single-cell formula that will handle the multiple instances of either the X or Y headings (ex: there are two 'Yes' Rows) and still reach the appropriate summations. I would like to accomplish this without resorting to Macros or manual cell references if possible.

    I've acheived some limited success with array formulae so far, but find that the multiple instances of 'Yes' cause only one row to be summed before the formula finishes.
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    Last edited by NBVC; 02-24-2009 at 02:56 PM.

  2. #2
    Forum Expert NBVC's Avatar
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    Re: Summing matrix values based on X & Y axis values

    Does this formula in B10, copied across and down.. accomplish that, or did I misunderstand your question?

    =SUMIF(Tasks,$A10,B$3:B$5)

    or

    maybe:

    =SUMPRODUCT((Tasks=$A10)*(Dates=B$9),Data)

    copied across and down...
    Where there is a will there are many ways.

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  3. #3
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    Re: Summing matrix values based on X & Y axis values

    YES!

    Those both worked, but the SUMPRODUCT makes both inputs dynamic based on the header!

    Thanks. MUCH easier to follow than arrays!

    -VT

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