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Incremental numbering at variable intervals of rows

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  1. #1
    Valued Forum Contributor tek9step's Avatar
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    Incremental numbering at variable intervals of rows

    Hi

    I am looking for a formula to do incremental numbering at variable intervals in column A based on data in Column B.Please find attached file as a sample. thanks
    Attached Files Attached Files
    Last edited by tek9step; 03-18-2011 at 08:35 AM.

  2. #2
    Forum Expert NBVC's Avatar
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    Re: Incremental numbering at variable intervals of rows

    How about?

    =COUNT($C$1:$C2) copied down
    Last edited by NBVC; 03-18-2011 at 08:36 AM. Reason: made column C absolute in C2
    Where there is a will there are many ways.

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  3. #3
    Valued Forum Contributor tek9step's Avatar
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    Thumbs up Re: Incremental numbering at variable intervals of rows

    brilliant Thanks NBVC )

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    Forum Guru (RIP) Marcol's Avatar
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    Re: Incremental numbering at variable intervals of rows

    Another reading of the requirement, but less likely to be the one you are after, NBVC has provided that.

    =IF(COUNTBLANK(B2:C2)=0,1,A1+1)
    Drag/Fill Down.
    Last edited by Marcol; 03-18-2011 at 08:54 AM. Reason: Apologies for spelling your handle incorrectly NBVC.
    If you need any more information, please feel free to ask.

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  5. #5
    Valued Forum Contributor tek9step's Avatar
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    Re: Incremental numbering at variable intervals of rows

    Thank you Marcol that works great too

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