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MrHajiCoolBreez's avatar
MrHajiCoolBreez
Frequent Visitor
1 year ago
Solved

Getting the Previous Value in a Matrix with 7 rows

I have a Matrix which looks like this   I have 7 Columns in ROWS "EndOfSnapShotWeek" in the COLUMNS and "Rev1" and "Rev2" in the VALUES I want to create two measures that will calculate ...
  • lbendlin's avatar
    lbendlin
    1 year ago

    You have interesting data including negative numbers. Calculating a WoW with a mix of positive and negative numbers is extremely subjective.  Make sure you agree with the formula.

     

    Here's my (subjective) version:

     

     

    Rev1 change = 
var pr1 = CALCULATE(sum(test[Rev1]),DATEADD('Calendar'[Date],-7,DAY))
return divide(sum(test[Rev1])-pr1,abs(pr1),1)

     

     

     

    However your x axis is driven by a fact date (end of snapshot week) and not by the dimension date as it should be . You will want to correct that too ( or modify the above formula)

     

     

     

MrHajiCoolBreez's avatar
MrHajiCoolBreez
Frequent Visitor
1 year ago

Do you have a workaround or an alternative approach to solve my initial problem?

  • lbendlin's avatar
    lbendlin
    Icon for Super User rankSuper User
    1 year ago

    Short of materializing your result into a calculated table? Don't think so.  But worth a try.

     

    Please provide sample data that covers your issue or question completely, in a usable format (not as a screenshot).
    Do not include sensitive information. Do not include anything that is unrelated to the issue or question.
    Please show the expected outcome based on the sample data you provided.

    Need help uploading data? https://community.fabric.microsoft.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-Forum/ba-p/963216
    Want faster answers? https://community.fabric.microsoft.com/t5/Desktop/How-to-Get-Your-Question-Answered-Quickly/m-p/1447523

    • MrHajiCoolBreez's avatar
      MrHajiCoolBreez
      Frequent Visitor
      1 year ago

      Here is a PBIX file with sample data
      Sample PBIX 
      I don't have super user access so I can't directly attached a PBIX so I'm using WeTrasfer

      With regards to expected output, if you can create 2 measures that I can use in conditional formating that shows the difference between Rev1 and Rev2 with the previous week that would be ideal

      • lbendlin's avatar
        lbendlin
        Icon for Super User rankSuper User
        1 year ago

        You have interesting data including negative numbers. Calculating a WoW with a mix of positive and negative numbers is extremely subjective.  Make sure you agree with the formula.

         

        Here's my (subjective) version:

         

         

        Rev1 change = 
var pr1 = CALCULATE(sum(test[Rev1]),DATEADD('Calendar'[Date],-7,DAY))
return divide(sum(test[Rev1])-pr1,abs(pr1),1)

         

         

         

        However your x axis is driven by a fact date (end of snapshot week) and not by the dimension date as it should be . You will want to correct that too ( or modify the above formula)