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Automation of Averages (X-posted)

  1. #1
    Registered User
    Join Date
    05-01-2006
    Posts
    3

    Automation of Averages (X-posted)

    Hi everyone,

    I have the following situation: I have 10,000 numbers all in the first column (A) in an Excel spreadsheet. I need to computer the averages of every 10 numbers (that is, the average of A1:A10, A11:A20, A21:A30, and so on). I know how to do this for every 1 cell (just by dragging down), but no idea how to do it for every 10 cells. Doing this by hand means that I'm going to have to deal with 1,000 separate values, manually...and that's not fun.

    Any ideas? Thanks.
    Edit/Delete Message

  2. #2
    Jerry W. Lewis
    Guest

    RE: Automation of Averages (X-posted)

    One approach is to put
    =AVERAGE(A1:A10)
    in B1, select cells B1:B10 (the formula and 9 blank cells) then either drag
    down or copy, select the rest of the 10000 rows in column B and paste.

    Jerry

    "bachya1208" wrote:

    >
    > Hi everyone,
    >
    > I have the following situation: I have 10,000 numbers all in the first
    > column (A) in an Excel spreadsheet. I need to computer the averages of
    > every 10 numbers (that is, the average of A1:A10, A11:A20, A21:A30, and
    > so on). I know how to do this for every 1 cell (just by dragging down),
    > but no idea how to do it for every 10 cells. Doing this by hand means
    > that I'm going to have to deal with 1,000 separate values,
    > manually...and that's not fun.
    >
    > Any ideas? Thanks.
    > Edit/Delete Message
    >
    >
    > --
    > bachya1208
    > ------------------------------------------------------------------------
    > bachya1208's Profile: http://www.excelforum.com/member.php...o&userid=34026
    > View this thread: http://www.excelforum.com/showthread...hreadid=537863
    >
    >


  3. #3
    Elkar
    Guest

    RE: Automation of Averages (X-posted)

    Try this:

    =AVERAGE(OFFSET($A$1:$A$10,ROW()*10-10,0))

    HTH,
    Elkar


    "bachya1208" wrote:

    >
    > Hi everyone,
    >
    > I have the following situation: I have 10,000 numbers all in the first
    > column (A) in an Excel spreadsheet. I need to computer the averages of
    > every 10 numbers (that is, the average of A1:A10, A11:A20, A21:A30, and
    > so on). I know how to do this for every 1 cell (just by dragging down),
    > but no idea how to do it for every 10 cells. Doing this by hand means
    > that I'm going to have to deal with 1,000 separate values,
    > manually...and that's not fun.
    >
    > Any ideas? Thanks.
    > Edit/Delete Message
    >
    >
    > --
    > bachya1208
    > ------------------------------------------------------------------------
    > bachya1208's Profile: http://www.excelforum.com/member.php...o&userid=34026
    > View this thread: http://www.excelforum.com/showthread...hreadid=537863
    >
    >


  4. #4
    Registered User
    Join Date
    05-01-2006
    Posts
    3
    Thank you both for your help.

  5. #5
    Peo Sjoblom
    Guest

    Re: Automation of Averages (X-posted)

    One way

    =AVERAGE(INDEX(A:A,ROWS($A$1:A1)*10-9):INDEX(A:A,ROWS($A$1:$A1)*10))

    --

    Regards,

    Peo Sjoblom

    http://nwexcelsolutions.com


    "bachya1208" <[email protected]> wrote
    in message news:[email protected]...
    >
    > Hi everyone,
    >
    > I have the following situation: I have 10,000 numbers all in the first
    > column (A) in an Excel spreadsheet. I need to computer the averages of
    > every 10 numbers (that is, the average of A1:A10, A11:A20, A21:A30, and
    > so on). I know how to do this for every 1 cell (just by dragging down),
    > but no idea how to do it for every 10 cells. Doing this by hand means
    > that I'm going to have to deal with 1,000 separate values,
    > manually...and that's not fun.
    >
    > Any ideas? Thanks.
    > Edit/Delete Message
    >
    >
    > --
    > bachya1208
    > ------------------------------------------------------------------------
    > bachya1208's Profile:
    > http://www.excelforum.com/member.php...o&userid=34026
    > View this thread: http://www.excelforum.com/showthread...hreadid=537863
    >




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