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Countif? Sumproduct?

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    Countif? Sumproduct?

    Hello all, hoping you can help...

    I have a range of data with names in column A and dates across row 1. Within cells B2:R4 I then enter text 'U', 'P' or 'S', with some cells also left blank.

    I need a formula (COUNTIF, SUMPRODUCT perhaps??) to count the number of groups/batches that occur for each name in consecutive cells, but only count the columns on and after the date entered (in the example, only after 5th Jan).

    I have a separate formula to count the individual occurrences of each letter after the date entered, but need to now calculate the occurrence of groups/batches of the letters.

    The batch/cluster table on example shows the expected results.

    Can anybody help? Many thanks!

    Batch count.png
    Last edited by liam_bettinson; 01-10-2019 at 06:59 AM.

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    Forum Expert Bo_Ry's Avatar
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    Re: Countif? Sumproduct?

    Please upload your sheet, Go Advanced > Manage Attachments.

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    Forum Expert XLent's Avatar
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    Re: Countif? Sumproduct?

    to keep things simple... I'd suggest using a Dynamic Named Range relative to your date value such that you don't end up with a hideously convoluted Frequency calc, I'd also suggest storing the row position in which name is found in the data (to reduce repetition)

    With name defined (_Data) the calc would look like:

    Formula: copy to clipboard
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    the above references are relative to the sample file...

    Note: should your P value for Name 2 not be 1 on grounds 4th Jan irrelevant? (if you change date to 4-Jan in the attached the result will shift to 2)
    Attached Files Attached Files

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    Re: Countif? Sumproduct?

    Hi XLent, thank you for the formula! Would it be possible to post an example not using the _Data references? My example above is just a snippet of my full sheet (can't share full sheet due to data protection etc). I can then transfer the formula into my full sheet, as currently I am unsure where the _Data refers to within your example.

  5. #5
    Forum Expert XLent's Avatar
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    Re: Countif? Sumproduct?

    _Data is a Dynamic Named Range -- refer to the Name Manager in Formula section on Ribbon

    you should modify the formula (range references) in this Name to mimic your real life dataset... in essence it is used to dynamically expand / contract relative to date limiter, in turn to avoid repetition in the subsequent Frequency calcs.

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    Re: Countif? Sumproduct?

    Please take a moment to read the forum rules and then amend your thread title to something descriptive of your problem - not what you think the answer might be. (think google search terms?). Once you have done this please send me a PM and I will remove this request. (Also, include a link to your thread - copy from the address bar)

    Many members search our previous posts, and thread titles play a big part of the search. I doubt anybody would do a search based on your title?

    To change a Title on your post, click EDIT POST then Go Advanced and change your title, if 2 days have passed ask a moderator to do it for you.

    (note: this change is not optional )
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