Forum Discussion

NewbieJono's avatar
NewbieJono
Post Partisan
2 years ago
Solved

Difference from previous Row

hello, I am looking to calculate the difference between the preview row in a matrix table.   I can do this in Excel, but not sure where to start with DAX.  
Need Help
  • Anonymous's avatar
    Anonymous
    2 years ago

    Thank you VahidDM  for your prompt reply.

    Hi NewbieJono  ,

    Depending on the information you have provided, you can add a new measure:

    NEW Difference =
VAR _Totalswtiches =
    SELECTEDVALUE ( 'Table'[Total_switches] )
VAR _MOVEAVERAGE =
    MAXX (
        FILTER ( ALL ( 'Table' ), [Total_switches] < _Totalswtiches ),
        [NEW Average]
    )
RETURN
    IF ( _Totalswtiches = 0, 0, SUM ( 'Table'[NEW Average] ) - _MOVEAVERAGE )

     Final output:

    How to Get Your Question Answered Quickly - Microsoft Fabric Community

    If it does not help, please provide more details with your desired out put and pbix file without privacy information.

     

    Best Regards,

    Ada Wang

    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

VahidDM's avatar
VahidDM
Super User
2 years ago

Hi NewbieJono 

 

Create a measure using this DAX Expression:

Difference = 
VAR _L =
    CALCULATE (
        SUM ( 'Table'[Calendar Days] ),
        'Table'[Col Numbe]
            = ( MAX ( 'Table'[Col Numbe] ) - 1 )
    )
RETURN
    SUM ( 'Table'[Calendar Days] ) - _L

Output:

 

 

If this post helps, please consider accepting it as the solution to help the other members find it more quickly.

Appreciate your Kudos!! 

LinkedIn | Twitter | Blog | YouTube 

  • NewbieJono's avatar
    NewbieJono
    Post Partisan
    2 years ago

    Thank you, is there any method to stop day zero and the last zero showing incorrect. day zero difference should be 0. last day not calculating correct