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curiouspbix0's avatar
curiouspbix0
Icon for Helper IV rankHelper IV
6 years ago
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compare previous value

What is the efficient dax to compare current value to previous value to derive up and down arrows ?  Input Table  City         Station   Measurement  Time  Brooklyn   S1         1.3               ...
  • Fowmy's avatar
    6 years ago

    curiouspbix0 

    Please try this measure; you can also use the Icon Set in Conditional Formatting with slight modIfication to this measure. 

     

    UpDown = 
    VAR D = MAX(Brooklyn[Time ])
    VAR PD=
        CALCULATE(
            MAX(Brooklyn[ Measurement ]),
           Brooklyn[Time ] < D
        )
    VAR DIF = 
    IF( 
        ISBLANK(PD), BLANK(),
        
        IF ( MAX(Brooklyn[ Measurement ]) - PD >= 0 , UNICHAR ( 9650 ), UNICHAR ( 128315 ))
    )
    
    RETURN
    DIF

     

     

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