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Column A Identifier, Coumn B Values, Perform Mathematical Function

  1. #1
    Registered User
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    12-23-2010
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    Excel 2010
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    Column A Identifier, Coumn B Values, Perform Mathematical Function

    Hello,

    Let's say I have an array of values. In Column A, the values are identifiers that put the values in Column B into groups. The values in Column B are observations. For example:

    A B
    001 5
    001 7
    001 4
    001 7
    014 5
    014 2
    014 9
    030 5
    030 3
    201 5
    201 8
    201 9
    201 3
    201 2

    I want to perform a mathematical function on the values in Column B based on the groups they are in. For example, I want to perform a mathematical function on the group with the identifer '014' so that means excel would manipulate the values [5, 2, 9]. The thing is, I don't know what each group's identifier is and there is not a set amount of observations in each group. How do I do this? Can anybody do an example and perhaps use the mean as the mathematical function? So calculate the mean of each group?

    Thanks!

  2. #2
    Forum Expert Moo the Dog's Avatar
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    Re: Column A Identifier, Coumn B Values, Perform Mathematical Function

    See my attached workbook. Let me know if it something that works for you.

    - Moo
    Attached Files Attached Files

  3. #3
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    12-23-2010
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    Re: Column A Identifier, Coumn B Values, Perform Mathematical Function

    Thanks for this. I'll see if I can use this to build off of.

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