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Cumulative count

  1. #1
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    Cumulative count

    Hi All - just a quick query which is driving me crazy. I've attached a workbook with an abbreviated sample of what I mean (I'm sorry - the data I have is confidential, so I can't post what it actually is). What I want to do is do a cumulative count of the words that I have in column A (in my sample, letters). I just did column C manually, but in my actual document I have 500,000 rows which I want to do this to and what to produce something like column C. I don't know if they're problems, but there are repeats in column A as well as gaps where there are just spaces (they aren't actually spaces because they're formulas which have produced ""). Sorry if this is unclear and thanks for any help!

    I mean "want to produce something like column C." Sorry!
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    Last edited by pike; 01-17-2012 at 05:51 AM. Reason: reset replies to zero

  2. #2
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    Re: Cumulative count

    if you don't need to count the number of instances in each cell, just the number of cells including your word, try this formula in cell C2 and copy down the rest of the column. Replace the "zzz" in the formula with the word you are looking for.

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  3. #3
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    Re: Cumulative count

    Thank you, but sorry, that's not quite what I'm looking for. If I want to put my numbers in column C, I want C9 to be the number of unique words in A1:A9, C10 to be the number unique words in A1:A10 etc. where the blank cells are not counted as words.

  4. #4
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    Re: Cumulative count

    Hi
    in that case, perhaps a user defined function will do the trick.
    This one will count all the words in a specified range (including numbers and characters so "B$55 is a cell on sheet 44" is 7 words)

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    Then in cell C1 enter the formula

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    and copy into your C column

  5. #5
    Forum Guru martindwilson's Avatar
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    Re: Cumulative count

    yours is slightly wrong as there are 10 unique in there but put in d1 =IF(COUNTIF($A$1:A1,A1)=1,1,"") drag down
    in c1 put =SUM($D$1:D1) drag down col d can be hidden or placed on another sheet altogether
    alternatively
    in c1 put 1
    in c2 put =IF(OR(A2="",COUNTIF($A$1:A2,A2)>1),c1,c1+1)
    Last edited by martindwilson; 01-17-2012 at 08:50 AM.
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