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Anonymous's avatar
Anonymous
Not applicable
8 years ago
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Dedupe ID - Keep most recent record

I have a list of Visitor IDs to a website for a specific timespan.  For purposes of summarizing the data, I would like to dedeupe the IDs in the list, keep only the timestamp of the most recent visit...
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  • Vvelarde's avatar
    Vvelarde
    8 years ago

    Anonymous

     

    (DAX(SUMMARIZECOLUMNS(analytics_clickstream_201802[visid_comb);"LastDate":MAX(analytics_clickstream_201802[date_time]))

    )).

     

    Replace : with ; 

     

    If you have problems with ; replace it with , (This is for regional settings)

     

    Regards

    Victor

     

     

Vvelarde's avatar
Vvelarde
Icon for Community Champion rankCommunity Champion
8 years ago

Anonymous

 

Hi, you can create a New Table (Modeling - New Table)

 

 

NewTable =
SUMMARIZECOLUMNS (
    'Sample Data'[Visitor ID];
    "LASTDATE"; MAX ( 'Sample Data'[Date] )
)

Regards

VIctor

 

Anonymous's avatar
Anonymous
Not applicable
8 years ago

Vvelarde

 

It occurred to me as you were posting your response that the Visitor ID is based on a concatentation based on a Dax Function.

 

Will this work?

  • Vvelarde's avatar
    Vvelarde
    Icon for Community Champion rankCommunity Champion
    8 years ago

    Anonymous

     

    Yes, this should be Work.

     

    It takes the Visitor ID (after the concatenation was made it). The visitor ID is a calculated column right?

     

     

    • Anonymous's avatar
      Anonymous
      Not applicable
      8 years ago

      Vvelarde

       

      This is the statement I am using for the ID creation:

      visid_comb = CONCATENATE(analytics_clickstream_201802[post_visid_low],analytics_clickstream_201802[post_visid_high])

       

      This is your recommendation, modified for the table:

      Column = SUMMARIZECOLUMNS(analytics_clickstream_201802[visid_comb);"LastDate":MAX(analytics_clickstream_201802[date_time]))

       

      This is the error message when I apply your suggestion, and I am not sure where my error is:

      The syntax for ')' is incorrect. (DAX(SUMMARIZECOLUMNS(analytics_clickstream_201802[visid_comb);"LastDate":MAX(analytics_clickstream_201802[date_time]))

      )).

       

      Appreciate all of the help.

       

       

      • Vvelarde's avatar
        Vvelarde
        Icon for Community Champion rankCommunity Champion
        8 years ago

        Anonymous

         

        (DAX(SUMMARIZECOLUMNS(analytics_clickstream_201802[visid_comb);"LastDate":MAX(analytics_clickstream_201802[date_time]))

        )).

         

        Replace : with ; 

         

        If you have problems with ; replace it with , (This is for regional settings)

         

        Regards

        Victor