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Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workbook

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    Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workbook

    I've been mostly into Python but need to use an existing excel workbook and do some some curve fitting using excel solver

    I shall be grateful if some can help me with what these formulae in excel mean

    1) =IF(AND(X26="Y",Y26=1), IF(H26/G26>=0, (G26-H26)*(1-H26/G26)^($L$3-1),(G26-H26)*(1-H26/G26)^($L$4-1)), #N/A)

    2) =IF(E26=0.127, F26, #N/A)

    3) =MAX(1E-50,IF(J11="BROKEN", NORM.DIST(LN(F11), LN(P11), $R$5,FALSE), 1-NORM.DIST(LN(F11), LN(P11), $R$5, TRUE)))

    Thanks a lot for the help
    Jo
    Last edited by ateestructural; 07-03-2020 at 02:18 AM.

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    Re: Excel Functions

    Administrative Note:

    We would very much like to help you with your query, however the thread title does not really convey what your request is about. Tell us what type of help you need.

    Please take a moment to amend your thread title. Make sure that the title properly explains your request. Your title should be explicit and not be generic (this includes function names used without an indication of what you are trying to achieve).

    Please see Forum Rule #1 about proper thread titles and adjust accordingly. To edit the thread title, open the original post to edit and then click on Go Advanced (bottom right) to access the area where you can edit your title.

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    Which bits specifically do you not understand?

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    I do not follow

    a) What the the three items separated by commas mean? That is what each comma indicate?
    b) What does the AND indicate int eh beginning of the sentence?
    c) What does the $ symbol indicate

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    OK.

    1) =IF(AND(X26="Y",Y26=1), IF(H26/G26>=0, (G26-H26)*(1-H26/G26)^($L$3-1),(G26-H26)*(1-H26/G26)^($L$4-1)), #N/A)

    If the red section is true, move onto the green section - if the red section is false, return N/A.
    If the start of the green section is true (up to the first comma), return the second section (after the comme). If its false, move onto the pink section.

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    =IF(AND(X26="Y",Y26=1)

    The AND means that both have to be true for the IF to return true.

    c) What does the $ symbol indicate
    It's there to lock or anchor cell references so that they don't change as you copy down or across - a dollar sign in front of the letter locks the column, one in front of the number locks the row. Google "Excel absolute and relative cell references".

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    Thanks a lot, much appreciated

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    If that takes care of your original question, please select Thread Tools from the menu link above and mark this thread as SOLVED.

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    One more question

    Considering the below

    =IF(AND(J11="UNBROKEN", E11=0.127,D11=650), 0.5*F11,0)

    Does it mean ONLY if red, green and yellow are true it returns 0.5*F11 else it returns 0?

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    Also, please can someone tell me what the formula means?

    =INDEX(Sheet2!$G$3:$G$301, MATCH(A11&B11, Sheet2!$B$3:$B$301,0))

    What does INDEX and MATC refer to?

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    =INDEX(Sheet2!$G$3:$G$301, MATCH(A11&B11, Sheet2!$B$3:$B$301,0))

    =INDEX(Sheet2!$G$3:$G$301, is the array where Excel will look for the value to return.

    MATCH(A11&B11, is the value Excel will look for in the lookup array.

    Sheet2!$B$3:$B$301,0)) is the lookup array.

    Find A11&B11 (A11 and B11 concatenated together) in Sheet2!$B$3:$B$301 and return what you find on the same row in Sheet2!$G$3:$G$301.

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    IF(AND(J11="UNBROKEN", E11=0.127,D11=650), 0.5*F11,0)

    Does it mean ONLY if red, green and yellow are true it returns 0.5*F11 else it returns 0?
    Yes - spot on.

    OR would return a result if ANY of the three returned TRUE:

    IF(OR(J11="UNBROKEN", E11=0.127,D11=650), 0.5*F11,0)

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    Thank you again, much appreciated

    I have an excel sheet which is using the Excel "Solver" and doing a curve fitting

    I'm really not able to make out from the charts where and how the curve fitting is being done using the Excel "solver". Can I attach my excel sheet and ask some questions?
    Last edited by ateestructural; 07-04-2020 at 02:59 AM.

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    Start a new thread with a suitable title and attach the sheet there.

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    Re: Excel Formulae - unable to undestand the formula(e) meaning in an existing excel workb

    Thank you very much. I have done as you adviced

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