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Selecting random cells based on criteria

  1. 10-23-2015, 08:01 AM #1
    JamesTrethowan is offline
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    Selecting random cells based on criteria

    Hi I have a sheet that contains a few thousand entries.

    In column "D" I have a value assigned to each entry (A, - W)

    What I want to do is select a random set of entries for each of the criteria in column "D" and return a list of cell values that are in column "A"

    However the number of cells I want to return changes for each criteria

    So for example If cell in column "D" contains an "A" I want to return the value of the corresponding cell in Column "A".

    So far so good?

    The next twist is that there is a variable number of entries for each criteria (A, B, C, etc... ,W)

    So if there are a total of 56 entries with an "A" in column "D" I want to specify the number of random entries I want returned for example I only want 9 of the 56.

    If that hasn't totally confused everyone, any suggestions on how to do this would be welcome.
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  2. 10-25-2015, 08:44 AM #2
    bsuperiorsystem is offline
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    Re: Selecting random cells based on criteria

    please attach an example file and explain on that
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  3. 10-26-2015, 06:20 AM #3
    JamesTrethowan is offline
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    Re: Selecting random cells based on criteria

    Sorry forgot to include the workbook
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  4. 10-26-2015, 07:42 AM #4
    samba_ravi is online now
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    Re: Selecting random cells based on criteria

    How your expected result would be?
    Samba

    Say thanks to those who have helped you by clicking Add Reputation star.
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  5. 10-26-2015, 09:41 AM #5
    JamesTrethowan is offline
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    Re: Selecting random cells based on criteria

    Expected results shown in workbook
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  6. 10-26-2015, 11:10 AM #6
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    Re: Selecting random cells based on criteria

    Insert a helper column and assign random numbers to the column using RANDBETWEEN
    Formula: copy to clipboard 
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    Copy this column and Paste Values to eliminate the formulae. My helper column was G
    I entered the letter in D34 and the number required in D35.
    I entered this formula in E34 and filled down:
    Formula: copy to clipboard 
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    ...confirmed by pressing CTRL+SHIFT+ENTER to activate the array, not just ENTER. You will know the array is active when you see curly braces { } appear around your formula. If you do not CTRL+SHIFT+ENTER you will get an error or a clearly incorrect answer. Press F2 on that cell and try again.
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    <---------If you like someone's answer, click the star to the left of one of their posts to give them a reputation point for that answer.
    Ron W
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  7. 10-26-2015, 12:28 PM #7
    bebo021999 is offline
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    Re: Selecting random cells based on criteria

    Assuming 1st starting at A34.

    In A34:

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    ...confirmed by pressing CTRL+SHIFT+ENTER to activate the array, not just ENTER. You will know the array is active when you see curly braces { } appear around your formula. If you do not CTRL+SHIFT+ENTER you will get an error or a clearly incorrect answer. Press F2 on that cell and try again.

    In A35:

    Please Login or Register  to view this content.
    Ctrl-shift-enter

    Copy A35 to A36
    Quang PT
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  8. 10-28-2015, 09:53 AM #8
    JamesTrethowan is offline
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    Re: Selecting random cells based on criteria - SOLVED

    Solved in another forum - Selecting random cells based on criteria
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  9. 10-28-2015, 11:15 AM #9
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    Re: Selecting random cells based on criteria

    Quote Originally Posted by JamesTrethowan View Post
    Solved in another forum - Selecting random cells based on criteria
    Could you give some comments on my and newdoverman's post? By that way, at least, giving respects to helpers.
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