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Average formula for last 15 days excluding blanks

  1. #1
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    Average formula for last 15 days excluding blanks

    Hi there,

    I'm trying to create a formula that takes the last 15 days worth of data. I can't just use the Average formula and select the last 15 rows as some rows will be blank and I need the average of the last 15 data points, even if it takes more than 15 days to get it. If I use the last 18 days there will definitely be 15 data sets in there, but I don't know what the formula would be to create an average for it.

    Thanks a lot!
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  2. #2
    Forum Guru AlKey's Avatar
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    Re: Average formula for last 15 days excluding blanks

    Enter this formula in B20 and pull it to the right

    =AVERAGEIFS(B2:B19,$A2:$A19,">"&MAX($A2:$A19)-15,B2:B19,">0")
    Last edited by AlKey; 12-22-2014 at 06:47 PM.
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