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Help with Geomean
My problem is I have a large excel database and need the Geomean of 365 numbers. This exceeds excels maximum number so I need to calculate using the log mean formula for geomean.
This is just a sample model of the large database Sheet 1 A B C 1 23 45 18 2 Sheet 2 A B C 1 50 60 70 2 I use the following formula to get the Geomean using the log mean method =EXP(AVERAGE(LN(Sheet1!A1:C1),LN(Sheet2!A1:C1))) This gets the log mean of all numbers in Sheet1 and Sheet2. My problem is I need to check that there are no zeros before performing the log mean. Here is a formula that checks for zeros then calculates the log mean(geomean) =EXP(AVERAGE(IF(ISNUMBER(Sheet1!A1:C1),LN(Sheet1!A 1:C1)))) This formula is for Sheet1 only. What I need is a formula that checks for zeros for Sheet1 and Sheet2 and then calculates the log mean (geomean) of numbers in Sheet1 and Sheet2 and places the answer on Sheet3. I can’t seem to put all of this in one formula. |
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