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wheelsshark's avatar
wheelsshark
Frequent Visitor
3 years ago
Solved

DAX function

Hi  I have a datatable like   in Power BI I have a dax function to find Max of each Town(T1, T2, T3) - it gives (201,200,200). Depending on the slicer selection it shows this value ...
  • wdx223_Daniel's avatar
    wdx223_Daniel
    3 years ago

    if the lookup value is duplicated, lookupvalue will get a error.

    LookupTown=VAR _h=[HighestTotal] RETURN CONCATENATEX(FILTER('tempdumpdata','tempdumpdata'[Total]=_h),'tempdumpdata'[Town],",")

  • Anonymous's avatar
    Anonymous
    3 years ago

    HI wheelsshark,

    Perhaps you can add a new condition to compare with the name field and selection to filter the result.

    LookupTown =
VAR _h = [HighestTotal]
VAR selection =
    VALUES ( Table[Name] )
RETURN
    CONCATENATEX (
        FILTER ( 'tempdumpdata', 'tempdumpdata'[Total] = _h && [Name] IN selection ),
        'tempdumpdata'[Town],
        ","
    )

    Regards,

    Xiaoxin Sheng

wheelsshark's avatar
wheelsshark
Frequent Visitor
3 years ago

Thank you Daniel, it works. But I cant understand.


Highest Total is 200 for C1, while var _h is 200
Return concatenatex(filter('tempdumpdata', 'tempdumpdata'[Total] = 200), 'tempdumpdata[Town] - this gives T3 and T2. I need only T3.

bz the slicer selection is C1. Can you help me understand

 
wdx223_Daniel's avatar
wdx223_Daniel
Community Champion
3 years ago

the function of LOOKUPVALUE do not consider any filters outsider. it always lookup all the table.