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Choosing calc field group total to print on report

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    #1

    Choosing calc field group total to print on report

    I do various reporting for our products for various managers.
    I have designed a report for one of them with unit sales, $ sales,
    variances, etc for this year vs last year. Now he wants to be able
    to specify a quarter and get the report based on that quarter.

    The fields from our tables have names like tjan, tfeb, tmar, ....
    and a calculated field in the database tttl (the total).
    Where I was placing the tttl field in the report I designed
    calculated fields in the report like:

    q1tynum defined as Tjan+Tfeb+Tmar (1 for each quarter)

    then I defined another calculated field to determine which calculated
    field to display:

    wqtynum defined as case(Var->Quarter=1,Calc->Q1tynum,
    Var->Quarter=2,Calc->Q2tynum,
    Var->Quarter=3,Calc->Q3tynum,
    Var->Quarter=4,Calc->Q4tynum)
    where var->quarter (global) is determined on the calling form.

    All is well so far,the correct quantities print in the detail section, but when I take that wqtynum field and place it in a group footer and specify "total" I get an error message at report print time:

    "invalid summary field expression".

    Am I trying to "nest" too many calculations for Alpha to handle? Is the order in
    which Alpha evaluates calculated fields causing my problem? Would I be better off
    placing the "q#tynum" fields and their group totals in conditional objects on the
    report and choose the object to display based on the var->quarter?

    Any suggestions?
    There can be only one.
    Tags: None
    #2
    RE: Choosing calc field group total to print on re

    i am not sure why it does not work. i would also have expected it to work.

    in any event, until we figure out why, there is a really easy work around.

    instead of totaling your calc field "wqtynum" which is:

    case(Var->Quarter=1,Calc->Q1tynum,
    Var->Quarter=2,Calc->Q2tynum,
    Var->Quarter=3,Calc->Q3tynum,
    Var->Quarter=4,Calc->Q4tynum)


    you should instead create totals for each of the calc fields, q1tynum, q2tynum, etc. (you can put them in the report footer, select total on the report genie, then delete them from the report - their definition will stll be in the calc fields screen)

    then define a new calc field which you place in the report footer. say the total for q1tynum is called tq1, q2tynum is tq2, etc.

    the formula for the total is:
    case(Var->Quarter=1,Calc->tqi,
    Var->Quarter=2,Calc->tq2,
    Var->Quarter=3,Calc->tq3,
    Var->Quarter=4,Calc->tq4)

    Comment

      #3
      RE: Choosing calc field group total to print on re

      Thanks Selwyn, I had figured that out too. Just seems like a lot of work when the original posting way "should" have worked.
      There can be only one.

      Comment

        #4
        RE: Choosing calc field group total to print on re

        Selwyn,

        Further info or related symptom. I was proceeding merrily, if tediously along the lines you mentioned. Defined totals for two nested groupings for units sold this year, last year, change, pct. Started to figure percentage change each quarter (((ty-ly)/ly)*100. At the detail level, no problem.
        Defined group total percentage change as :
        q1stunipct = (q1tystatnum-q1tystatnum)/(q1tystatnum))*100. (Q1statnum = total(Calc->Q1tynum,GRP->Stat_cd)) similar for q1lystatnum, evaluates ok.

        Created the "which quarter" case expression.

        case(var->Quarter=1,Calc->q1stunipct,
        var->Quarter=2,Calc->q2stunipct,
        var->Quarter=3,Calc->q3stunipct,
        var->Quarter=4,Calc->q4stunipct)

        Won't evaluate, error says that it can't find the totals that the percentage computations are based on. Fails on "q4lystatnum" (the righmost expression in the equation if you expand all expressions)

        Now really stumped. Should I send you sample files or is the description clear enough?
        There can be only one.

        Comment

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