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grggmrtn's avatar
grggmrtn
Post Patron
5 years ago
Solved

Distinct CountX?

I have the following DAX measure: CurrentBorger = CALCULATE ( COUNTX ( FILTER ( 'nexus2 Fact_VisiteretTid', 'nexus2 Fact_VisiteretTid'[Start] <= MAX ( Dato[Dato...
Need Help
  • grggmrtn's avatar
    grggmrtn
    5 years ago

    Ok I actually got it figured out, and it was a LOT easier than I thought it should have been 😄

     

    First, I got rid of the relations between the tables.

    Then it was just a matter of creating the following measure:

     

    Measure = 

VAR StartDato =
    MIN ( Dato[Dato] )
VAR SlutDato =
    MAX ( Dato[Dato] )

RETURN
    CALCULATE (
        DISTINCTCOUNT('nexus2 Fact_VisiteretTid'[CPRnrKort]),
        FILTER ( 'nexus2 Fact_VisiteretTid', ( 'nexus2 Fact_VisiteretTid'[Start] <= SlutDato && 'nexus2 Fact_VisiteretTid'[Stop] >= StartDato ) )
    )

     

    Seriously, it solved all my problems, and the result validates. Go figure XD

grggmrtn's avatar
grggmrtn
Post Patron
5 years ago

Eek - not quite - that took me from 1300+ to 4. I should be at about... 800-ish?

PaulDBrown's avatar
PaulDBrown
Community Champion
5 years ago

grggmrtn 

Both measures returned 4?

 

  • grggmrtn's avatar
    grggmrtn
    Post Patron
    5 years ago

    Whoops - no it was the second. The first killed my visual

     

    Error was something along the lines of "Calculation error in the measure. There were many values, where there was only expected one" (sorry for the translation)

    • PaulDBrown's avatar
      PaulDBrown
      Community Champion
      5 years ago

      grggmrtn 

      I'll hazard another guess (It's hard to pinpoint an adequate solution without sample data and the structure of the model). Let's see if taking the table calculation to a VAR makes a difference:

      Measure = 
VAR _Table = 
    CALCULATETABLE(
         VALUES( 'nexus2 Fact_VisiteretTid'[CPRnrKort] ),
        FILTER (
            'nexus2 Fact_VisiteretTid',
            'nexus2 Fact_VisiteretTid'[Start] <= MAX ( Dato[Dato] )
                && (
                    ISBLANK ( 'nexus2 Fact_VisiteretTid'[Stop] )
                        || 'nexus2 Fact_VisiteretTid'[Stop] >= MAX ( Dato[Dato] )
                )
        )
RETURN
    CALCULATE(
       COUNTROWS( _Table), 
       CROSSFILTER ( 'nexus2 Fact_VisiteretTid'[Start], Dato[Dato], NONE )
)

       

      Not sure if that will make a difference, but you can check the steps by using the return function firstly to see what the VAR returns (using COUNTROWS) and see if it makes sense, and then check the impact of the second filter expression in the final CALCULATE function.

      Make sense?

       

      • grggmrtn's avatar
        grggmrtn
        Post Patron
        5 years ago

        That's not working either - but we're up to 40, so it's 10x better hehe.
        I'm not sure what's happening, it's as if my data is just acting strange.

        It's a pretty basic flat table, with CPR being the personID, and Start and Stop are of course the start and stop dates.. There's 7 other columns that are just details about the transaction the person had, and I'll be filtering with them eventually - but right now I just need to get this working.