Geomean Calculation Discrepancy
Mar 12, 2008
For a set of of paired values A and B, I calculated the Geometric Mean two different ways in Excel (Office 2003). First using the GeoMean function. Second using the equivalent formula,
which is:
(A * B)^.5
(i.e. the square root of A times B).
I was surprised to find that the two methods produced different results 11% of the time.
OK, the discrepancy does not appear until after 10 or 11 decimal places, but I would like to know which method produces the more accurate result. Does anybody know?
calculating the geometric mean using logs (wherein the geometric mean of A and B is equal to the anti-log of the average of their logs) produces discrepancies about 30% of the time, so I assume that is the least accurate method.
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Jul 10, 2012
I have a spreadsheet with Data in Columns A-H. Column B is an ID value that will repeat an unknown amount of times. For each Value in Column B I need to calculate the Median, Mean, and GeoMean for the corresponding range of "G_:H_"
Ex.
Column B
Column G
Column H
2
10
5
2
13
9
[code]....
I need the Median, Mean, and Geo Mean values to paste in Columns N-P for each different Station Index. My code only calculates for the first Station ID
Here is the code for what I have so far
Code:
Sub Median()
Dim r As Long
Dim stndx As String
Dim i As Long
Dim x As Integer
Application.Calculation = xlCalculationManual
[code]....
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Oct 29, 2009
i am regular viewer of these forum..really this forum gave me many nice information. btw i am wrking for in a logistics field. i am not tats much professional in excel.
every year end i am preparing anual stock taking report in excel. but this time i like to take adavantage of membership of this forum by asking some some tips for this my anual stock taking report. so i am attached a sample file. in this file sheet-1 i put all datas of stock items. in sheet-1
A2=S.No
B2= Item Code
C2= Description
d2= UOM (Unit of messurement)
e2= Closing stock (stock in system)
G2= F2-E2 (Discrepancy)
now i want only Discrepancy (if there is minus and plus...)item lists in another sheet (report sheet). how can get all this data there?
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I should disclaim that I'm quite novice at that, so my approach to writing macros is to record individual steps to determine the appropriate method, then copy and paste.
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When I try to find the row of the clicked button using the following code;
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End If
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Jan 30, 2014
A
B
C
D
F
1
Received
Overdue
Completed
Untouched
[code]....
Overdue is received in previous slot and still under dependency.
Formula used for untouched - B2+C2-D2
SLA Target Min - 98% and Max 99%
Algorithm - (Total Number of Allocations completed within 5 business days Plus Type A Exclusions) / Total Number of Allocations received minus Type B Exclusions) * 100
I need a individual SLA achieved % which includes untouched too.
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CalculationE.xlsx
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Uplift
Calculation
Result
[Code]....
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