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Anonymous's avatar
Anonymous
Not applicable
8 years ago
Solved

Error with PREVIOUSMONTH - duplicatedates

HI - I am trying to build a new measure which returns the calculated value for the previous month.   This is the initial measure I am working with which returns the correct data:   MeetingsPerDay...
Need Help
  • Interkoubess's avatar
    Interkoubess
    8 years ago

    HI Anonymous,

     

    Please create a Calendar table covering your period ( for example 2 years ..) and link this table to your fact table by the date.

     

    Then you can write your measure with the previousmonth function and calendar date.

     

    Hope it helps otherwise give sample data and will help.

     

    Ninter.

Interkoubess's avatar
Interkoubess
Icon for Solution Sage rankSolution Sage
8 years ago

HI Anonymous,

 

Please create a Calendar table covering your period ( for example 2 years ..) and link this table to your fact table by the date.

 

Then you can write your measure with the previousmonth function and calendar date.

 

Hope it helps otherwise give sample data and will help.

 

Ninter.

  • Anonymous's avatar
    Anonymous
    Not applicable
    8 years ago

    What do you mean by link the table?

    • v-jiascu-msft's avatar
      v-jiascu-msft
      Icon for Microsoft Employee rankMicrosoft Employee
      8 years ago

      Hi Anonymous,

       

      It's the new date table. We usually create an independent date table in your scenario. Please give it a try. 

      Calendar = calendar(date(2017,1,1),date(2018,12,31))
      Calendar = calendarauto()

      Best Regards,

      Dale

  • Anonymous's avatar
    Anonymous
    Not applicable
    6 years ago

    Hey Interkoubess , any suggestions how to work it out when we use Power BI streaming dataset and we can't created additional dataset? 

    • Nathaniel_C's avatar
      Nathaniel_C
      Icon for Community Champion rankCommunity Champion
      6 years ago

      Anonymous ,

      Not sure how that works, but can you add an index to your table in Power Query? If so, you can use that to find the previous row.

       

      Let me know if you have any questions.

       

      If this solves your issues, please mark it as the solution, so that others can find it easily. Kudos are nice too.
      Nathaniel

      • Anonymous's avatar
        Anonymous
        Not applicable
        6 years ago

        Nathaniel_C , I can manipulate with dataset however I want. But for different categories may be updated in different times so I will not be able to use TOP N filter (because some values will not be shown there).