Forum Discussion

Anonymous's avatar
Anonymous
Not applicable
7 years ago
Solved

Delta calculation for user defined period

Hi,

 

I have historized monthly data for customer accounts and I would need to build a measure that calculates the Delta for any period defined by the user.

 

My data looks like this:

 

CustomerIDDateAccumulated costs
131.3.2019100
130.4.2019100
131.5.2019

150

1...

...

231.3.2019100
230.4.2019200
231.5.2019200
2...

...

 

From this data a bunch of measures are calculated, summing up Accumulated costs based on different attributes of the customer.

 

The desired functionality is that the user selects a start date and an end date in a slicer (based on attribute Date in data above) and Power BI calculates the delta (change) in accumulated costs between those dates.

 

How could Power BI dynamically calculate the delta for any given period defined by the user?

Thanks for the help!

 

Need Help
  • TeigeGao's avatar
    TeigeGao
    7 years ago

    Hi Anonymous ,

    This is because I use the ALL() function, we can change it like below:

    Delta =
CALCULATE (
    SUM ( Data[Accumulated costs] ),
    FILTER (
        ALL (Data[Date] ),
        Data[Date] >= SELECTEDVALUE ( 'start date'[Date] )
            && Data[Date] <= SELECTEDVALUE ( 'end date'[Date] )
    )
)

    Change the all (data) to ALL (Data[Date] )

    Best Regards,

    Teige

3 Replies

  • TeigeGao's avatar
    TeigeGao
    Solution Sage
    7 years ago

    Hi Anonymous ,

    In your scenario, we can create two calendar tables for the start and end date slicer, then create the following measure:

    Delta =
CALCULATE (
    SUM ( Data[Accumulated costs] ),
    FILTER (
        ALL ( Data ),
        Data[Date] >= SELECTEDVALUE ( 'start date'[Date] )
            && Data[Date] <= SELECTEDVALUE ( 'end date'[Date] )
    )
)

    The result will like below:

    Best Regards,

    Teige

    • Anonymous's avatar
      Anonymous
      Not applicable
      7 years ago

      Hi TeigeGao ,

       

      Thanks for the help!

       

      One issue with your solution:

       

      For some reason created Delta measure is not allocated correctly into columns in my Matrix visual, all columns show the total delta. 

       

      Delta should be allocated by attribute Location. See data below and screenshot of how delta is not allocated.

       

      CustomerIDDateAccumulated costsLocation 
      131.3.2019100A
      130.4.2019100A
      131.5.2019150A
      231.3.2019100B
      230.4.2019200B
      231.5.2019200B
      331.3.201950C
      330.4.201950C
      331.5.201950C

       

      • TeigeGao's avatar
        TeigeGao
        Solution Sage
        7 years ago

        Hi Anonymous ,

        This is because I use the ALL() function, we can change it like below:

        Delta =
CALCULATE (
    SUM ( Data[Accumulated costs] ),
    FILTER (
        ALL (Data[Date] ),
        Data[Date] >= SELECTEDVALUE ( 'start date'[Date] )
            && Data[Date] <= SELECTEDVALUE ( 'end date'[Date] )
    )
)

        Change the all (data) to ALL (Data[Date] )

        Best Regards,

        Teige