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BIQuest321's avatar
BIQuest321
Frequent Visitor
3 years ago
Solved

Subtract values based on two slicer selections

Hey All,

 

Been noodling this all day and coming up short so far. Essentially I will have two slicers that are supposed to offer dynamic comparisons of fact table data. These are basic calculations such as distinct counts. But I want to be able to select "Option A" from "Slicer A" and subtract "Option B" from "Slicer B". In the screenshot you see an example of two slicers, their distinct count below and the final piece I need is populating the math for the visual comparing the two. 

 

Very simple example of my fact table

IDNameDescription
1AetnaA
2AetnaB
3AetnaC
4BCBS ArizonaA
5BCBS ArizonaB
6BCBS Arizona

C

 

 

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  • bolfri's avatar
    bolfri
    3 years ago

     

     

    Create 2 tables:

    Option A = GROUPBY(SampleData,SampleData[Name])
    Option B = GROUPBY(SampleData,SampleData[Name])
     
    Create 3 measures:
    Option A Value = CALCULATE([Average ID],SampleData[Name] in VALUES('Option A'[Name]))
    Option B Value = CALCULATE([Average ID],SampleData[Name] in VALUES('Option B'[Name]))
    B minus A = [Option B Value] - [Option A Value]
     
    You can add also 2 more bonus measures to prevent from selecting same name in A & B at the same time:
    Not in A = IF(SELECTEDVALUE('Option B'[Name]) in VALUES('Option A'[Name]),0,1)
    Not in B = IF(SELECTEDVALUE('Option A'[Name]) in VALUES('Option B'[Name]),0,1)
    Put those measures on filters with condition = 1.
     

     

    In this case you can't select Aetna, because it's on Option A, but if on option A will be Bolfri > Bolfri will dissapear from Option B, and Aetna will be avaliable to select.

     

    PBIX file: https://we.tl/t-GVWssWxBpX

     

3 Replies

  • bolfri's avatar
    bolfri
    Solution Sage
    3 years ago

     

     

    Create 2 tables:

    Option A = GROUPBY(SampleData,SampleData[Name])
    Option B = GROUPBY(SampleData,SampleData[Name])
     
    Create 3 measures:
    Option A Value = CALCULATE([Average ID],SampleData[Name] in VALUES('Option A'[Name]))
    Option B Value = CALCULATE([Average ID],SampleData[Name] in VALUES('Option B'[Name]))
    B minus A = [Option B Value] - [Option A Value]
     
    You can add also 2 more bonus measures to prevent from selecting same name in A & B at the same time:
    Not in A = IF(SELECTEDVALUE('Option B'[Name]) in VALUES('Option A'[Name]),0,1)
    Not in B = IF(SELECTEDVALUE('Option A'[Name]) in VALUES('Option B'[Name]),0,1)
    Put those measures on filters with condition = 1.
     

     

    In this case you can't select Aetna, because it's on Option A, but if on option A will be Bolfri > Bolfri will dissapear from Option B, and Aetna will be avaliable to select.

     

    PBIX file: https://we.tl/t-GVWssWxBpX

     

    • BIQuest321's avatar
      BIQuest321
      Frequent Visitor
      3 years ago

      Is this possible without duplicating the fact table?? Obviously considering a much more complex scaled up example doubling the data is extremely performance prohibative. 

       

      Edited - Okay I misunderstood your solution and my apologies on that. After reviewing your file this does exactly what I'm looking for without duplicating the fact table. Nicely done that's really slick!!

    • BIQuest321's avatar
      BIQuest321
      Frequent Visitor
      3 years ago

      Hey bolfri,

       

      New day new problem. With the original premise basically still in tact here, how could I display the actual descriptions that are different or in common between A and B?

      For example:
      Option A has: A, B, C, D, E
      Option B has: B, E, X, Y, Z

      Result would return what they do or don't have in common:

      Result (A,B): X, Y, Z
      Result (B,A): A, C, D