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Fuhrer786's avatar
Fuhrer786
Frequent Visitor
6 years ago
Solved

Roll up Abs difference at group level

Hello All,

 

I am calculating abs differnce between actual and fcst at SKU level which rollups upto different product groups. I want to  roll up abs diff  of all items  correctly at product group level  but right now it sums up and then does abs diff.I saw couple of links but in my case data is coming from 3 tables not one.

 

Sample Data

 

                        Total Sales   Fcst    Expected(Abs diff)   My output

Product Group       300        270               90                   30

Item1                     100         50                 50                   50

Item2                     200         240               40                   40

 

Data is coming from 3 tables- Product info from DimProduct, Sales from Salestable and Forecast from FinalPredictions  table all joined by ItemNumber which is common join between tables

 

My measure:

ABS(Sum(SalesTable[Totalsales])-sum(FinalPredictions[Predictedsales]))
 
Any help appreciated! Thanks
Need Help
  • jdbuchanan71's avatar
    jdbuchanan71
    6 years ago

    Hello Fuhrer786 

    Give this a try.  It will generate a virtual table of all the [Product Group] in your DimProduct table then, for each row in the virtual table it will do the ABS calc and finally it will add up all those values.

    Measure =
SUMX (
    VALUES ( DimProduct[Product Group] ),
    ABS ( CALCULATE ( SUM ( SalesTable[Totalsales] ) ) - CALCULATE ( SUM ( FinalPredictions[Predictedsales] ) ) )
)
  • jdbuchanan71's avatar
    jdbuchanan71
    6 years ago

    Hello Fuhrer786 

    No, you are not doing anything wrong.  I forgot to force the context transition in the iterator.  It should have been.

    Measure =
SUMX (
    VALUES ( DimProduct[Product Group] ),
    ABS ( CALCULATE ( SUM ( SalesTable[Totalsales] ) ) - CALCULATE ( SUM ( FinalPredictions[Predictedsales] ) ) )
)

    But two measures is the way to do it because they force the context transition and can be used in other places.

4 Replies

  • jdbuchanan71's avatar
    jdbuchanan71
    Super User
    6 years ago

    Hello Fuhrer786 

    Give this a try.  It will generate a virtual table of all the [Product Group] in your DimProduct table then, for each row in the virtual table it will do the ABS calc and finally it will add up all those values.

    Measure =
SUMX (
    VALUES ( DimProduct[Product Group] ),
    ABS ( CALCULATE ( SUM ( SalesTable[Totalsales] ) ) - CALCULATE ( SUM ( FinalPredictions[Predictedsales] ) ) )
)
    • Fuhrer786's avatar
      Fuhrer786
      Frequent Visitor
      6 years ago

      Hello jdbuchanan71 

       

      Thanks for efforts. I tried but didn't work. Also, I have to do at item level and roll it up to product groups. I tried with below one after changing product group to item number in sumx

       

      Measure =
SUMX (
    VALUES ( DimProduct[Item Number] ),
    ABS ( SUM ( SalesTable[Totalsales] ) - SUM ( FinalPredictions[Predictedsales] ) )
)

       

    • Fuhrer786's avatar
      Fuhrer786
      Frequent Visitor
      6 years ago

      Hello jdbuchanan71 

       

      It worked perfect now. I created 2 separate measures for actualsales and forecast value

       

      TotalSales=sum(Salestable[TotalSales])

      TotalForecast=sum(Finalpredictions[PredictedSales])

       

      Measure =
SUMX (
    VALUES ( DimProduct[Item Number] ),
    ABS (TotalSales - TotalForecast )
)

       Formula still same, I must be doing something wrong but creating extra measures worked for me! Thank u so much

      • jdbuchanan71's avatar
        jdbuchanan71
        Super User
        6 years ago

        Hello Fuhrer786 

        No, you are not doing anything wrong.  I forgot to force the context transition in the iterator.  It should have been.

        Measure =
SUMX (
    VALUES ( DimProduct[Product Group] ),
    ABS ( CALCULATE ( SUM ( SalesTable[Totalsales] ) ) - CALCULATE ( SUM ( FinalPredictions[Predictedsales] ) ) )
)

        But two measures is the way to do it because they force the context transition and can be used in other places.