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if function with error checking

  1. #1
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    Red face if function with error checking

    Hello

    My file looks like this:

    Column
    A - number of pieces (manual input)
    B - x dimension of area (manual input)
    C - y dimension of area (manual input)
    D - area based on B and C (formula = B*C)
    E - irregular area (manual input, if area is not rectangle)

    F- solve for density number (pcs/area)

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    TIA
    Last edited by smalltime; 02-28-2010 at 11:38 PM. Reason: correct code

  2. #2
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    Re: help- a simple if function with error checking

    Maybe:

    You haven't presented enough information to resolve this formula issue..."it doesn't work" is pretty unhelpful:
    =IF(AA27="",H27/AB27,IF(ISERROR(H27/AA27),"",(H27/AA27)))


    This formula should also work, even when B or C is blank.
    =IF(D1=0,A1/E1,IF(ISERROR(A1/D1),"",(A1/D1)))


    There must be something else going on you have not presented. Click GO ADVANCED and use the paperclip icon to post up your workbook, let us see what else might be going on.
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  3. #3
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    Re: if function with error checking

    thanks JBeaucaire,

    see attached.. Cell F6 should be zero or blank.

    I think i have to add column A to the IF condition.

    thanks
    Attached Files Attached Files

  4. #4
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    Re: if function with error checking

    i already have a solution.
    Feel free to share if you have a better one
    thanks

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    Re: if function with error checking

    Hi,
    Looking at your attachment, you formula is doing exactly what it should.
    I think the problem my be that you do not have anything to treat an error where you are D6 = 0 AND E6 is empty or equals zero.

    Not sure what you want to happen where both D6 and E6 are empty or zero...

  6. #6
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    Re: if function with error checking

    Oops, sorry didn't see you had found a solution.

    Your solution works fine if there is nothing in cell A2, but will not work if you have a number in cell A2.

    Try replacing your
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    with

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    This will test if the Length of any entry in cell A2 is 0, and if is zero then ""

  7. #7
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    Re: if function with error checking

    thanks Jbentley

    your solution is better
    more power

    edit: i found the best solution according to my needs:

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    Last edited by smalltime; 03-02-2010 at 03:20 AM.

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