Forum Discussion

mgrayTCB's avatar
mgrayTCB
Icon for Helper IV rankHelper IV
4 years ago
Solved

Context transition with variable

when i calculate this average with two separate measures it works correctly but when I try to combine it into one meaure with an extra variable it stops working correctly. I am trying to calculate th...
DAX Calculation
Variable calculation
  • SpartaBI's avatar
    SpartaBI
    4 years ago

    mgrayTCB hey, yes, I actually fixed that 20 minutes ago in the original message but seems I didn't click post haha 🙂 One sec, will update the original code

  • SpartaBI's avatar
    SpartaBI
    4 years ago

    mgrayTCB try this:

     

    MS Months Chg2 =
AVERAGEX (
    FILTER (
        ADDCOLUMNS (
            Project,
            "@datechg",
                VAR SSdate =
                    CALCULATE ( MINX ( MilestoneSS, MilestoneSS[DateActOrEstSS] ) )
                VAR Curdate =
                    CALCULATE ( MAXX ( Milestones, Milestones[DateActOrEst] ) )
                VAR datechg =
                    DATEDIFF ( SSdate, Curdate, DAY ) / 30.4
                RETURN
                    datechg
        ),
        [@datechg] <> 0
    ),
    [@datechg]
)

     




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  • SpartaBI's avatar
    SpartaBI
    4 years ago

    mgrayTCB no problem.

    Please also add calculate on top of minx and maxx in lines 7 and 9 and you can actually remove the calculate we added before, it has no meaning. All there is vars anyway.

    BTW, in general, you don't need the calculate in line 2. 

mgrayTCB's avatar
mgrayTCB
Icon for Helper IV rankHelper IV
4 years ago

Thank you so much! I was wondering about performance and before I could even test it in my model you rewrote it. I have never seen the "@" syntax. Is that just your convention for columns of virutal tables?

thanks again!

SpartaBI's avatar
SpartaBI
Icon for Community Champion rankCommunity Champion
4 years ago

mgrayTCB exactly! To distinguish between model columns and temporary query columns inside a measure.

Please go check my report and kudos it of you like it 😃😃

  • mgrayTCB's avatar
    mgrayTCB
    Icon for Helper IV rankHelper IV
    4 years ago

    hey - your two measures are returning different results and I cant figure out why.  MS Delay Faster is the correct answer (average of the delays not = 0.

     

     

      • mgrayTCB's avatar
        mgrayTCB
        Icon for Helper IV rankHelper IV
        4 years ago

        I adjusted them both to use values(project[projectname]) and I still get different answers. The MS Delay Faster does produce the correct averge of the items above but I dont understand why MS Delay produces a different answer. It is always different even with different MS Short Names selected. It is always lower.