Forum Discussion

RNZALR's avatar
RNZALR
Helper I
3 years ago

Calculating Prior Year Values

I've got some player data for a sport and I've calculated the number of players who are either new, returning or retained.  The definitions of each type is: New:  Does not appear in the database in...
Jihwan_Kim's avatar
Jihwan_Kim
Super User
3 years ago

Hi,

I tried to create a DAX formula based on what I got from the question.
Please check if it suits your datamodel.

Prior year New Player Numbers =
VAR _currentyear =
    MAX ( 'Date Table'[Season] )
VAR _prioryear = _currentyear - 1
VAR _prioryearregisterlist =
    CALCULATETABLE (
        SUMMARIZE ( 'Player Registrations', 'Player Registrations'[Person ID] ),
        'Date Table'[Season] = _prioryear
    )
VAR _previousofprioryearregisterlist =
    CALCULATETABLE (
        SUMMARIZE ( 'Player Registrations', 'Player Registrations'[Person ID] ),
        'Date Table'[Season] < _prioryear
    )
RETURN
    COUNTROWS (
        EXCEPT ( _prioryearregisterlist, _previousofprioryearregisterlist )
    )

 

 

  • RNZALR's avatar
    RNZALR
    Helper I
    3 years ago

    It is close, and certainly better than my attempts, but the numbers are not lining up.  See the table below

    What would the Prior Year Returning Player formula look like as well?

    • Jihwan_Kim's avatar
      Jihwan_Kim
      Super User
      3 years ago

      Hi,

      Thank you for your message.

      Please provide a link of the sample pbix file, and then I can try to look into it to come up with a more accurate solution.

      Thanks.

      • RNZALR's avatar
        RNZALR
        Helper I
        3 years ago

        I have emailed you the file to the address you gave me last time.  Thank you!