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Percent of Total issues...

  • August 21, 2016 at 11:36 pm

    #312640

    I have a Fact table that looks like this (it's a really small table... I know the design is less than ideal!!!):

    CREATE TABLE DiagnosisFact(

    PatientID INT,

    SymptomName VARCHAR(20),

    Severity TINYINT,

    ConsentDate DATE

    );

    I have a Symptom table...

    CREATE TABLE DimSymptom (

    SymptomName VARCHAR(20) PRIMARY KEY

    );

    I can create the DiagnosisCount ... COUNTROWS('DiagnosisFact').

    The dumb thing I can't get to work is the Percentage of Total stuff. I must be missing something, but I can't override the SymptomName on the column or row...

    I thought it should be:

    Pct of Total:=

    DIVIDE( [Diagnosis Count], CALCULATE ( COUNTROWS('Diagnosis'),ALL('Diagnosis'[SymptomName]) ) )

    but no joy... what am I doing wrong?

    For grins, I did this in Excel 2016, and it worked...

    =CALCULATE ( [Total Sales], ALL( 'Calendar'[EnglishMonthName] ) )

    In terms of this dataset, it would be

    = DIVIDE ( [Diagnosis Count], CALCULATE ( [Diagnosis Count], ALL( 'Diagnosis'[SymptomName] ) ) )

    thanks,

    Pieter

  • August 22, 2016 at 12:42 pm

    #1896736

    I figured it out...

    DIVIDE( [Symptom Count],

    CALCULATE(COUNTROWS('Diagnoses'),ALL('Diagnoses'))

    , BLANK()

    )

    One day I might maybe understand DAX, but that's not going to be anytime soon.

  • August 22, 2016 at 7:56 pm

    #1896788

    I guess my question would be, why are you using PowerPivot for this calculation to begin with? Why not "just" use T-SQL?

    --Jeff Moden

    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

    Change is inevitable... Change for the better is not.

    Helpful Links:
    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)

  • August 22, 2016 at 8:29 pm

    #1896794

    Jeff,

    I would but then I would lose the ability to drill into it. It's the smallest data warehouse structure ever! 3 dimension tables and a fact table. Not terribly exciting, but I'm learning DAX, so I'm starting small.

    Besides, if I did it all in SQL Server, I'd never learn DAX at all...

    Pieter

  • August 22, 2016 at 8:45 pm

    #1896797

    Ah... got it. Thanks for the time for the response.

    --Jeff Moden

    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

    Change is inevitable... Change for the better is not.

    Helpful Links:
    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)

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