Forum Discussion

SNV's avatar
SNV
Advocate I
8 years ago

FIRSTDATE and LASTDATE

Hello community,   Building on a previous solution for an answer, I'm using FIRSTDATE and LASTDATE to get the first and most recent occuring date. Problem is, whenever I use a date slicer to narro...
Need Help
Anonymous's avatar
Anonymous
Not applicable
8 years ago

Hi SNV,

 

It seems like I can't access to the shared file(no permission to access your sharepoint), can you please upload it to onedrive and share the link?

 

Regards,

Xiaoxin Sheng

SNV's avatar
SNV
Advocate I
8 years ago

Edited my first post, it seems to work.

 

Kind regards

  • Anonymous's avatar
    Anonymous
    Not applicable
    8 years ago

    Hi SNV,

     

    After I modify your formula, chart graph seems works again, you can take a look at below formula.

     

    AVG MAX DATE = 
VAR Tbl3 =
    SUMMARIZE (
        FILTER ( 'SampleData', [ZRM.Date] = [Maximum Date] ),
        [Group],
        [ZRM.ID],
        "AVG_PER_ID_ON_MAX_DATE", AVERAGE ([SCORE] )
    )
RETURN
    AVERAGEX ( Tbl3, [AVG_PER_ID_ON_MAX_DATE] )


AVG MIN DATE = 
VAR Tbl2 =
    SUMMARIZE (
        FILTER ( 'SampleData', [ZRM.Date] = [Minimum Date] ),
        [Group],
        [ZRM.ID],
        "AVG_PER_ID_ON_MIN_DATE", AVERAGE ( [SCORE] )
    )
RETURN
    AVERAGEX ( Tbl2, [AVG_PER_ID_ON_MIN_DATE] )

     

     

    Notice:
    1. It seems original table column name not works on filtered table, you can remove prefix table name to direct use column name, power bi will recognize to the filtered temp table.

    2. I attached the modified sample file below.

     

    Regards,

    Xiaoxin Sheng

    • SNV's avatar
      SNV
      Advocate I
      8 years ago

      Hello Xiaoxin Sheng,

       

      Thanks for your fast response.

      I took a look at your file, but I'm still not getting the correct averages.

      Maybe I didn't explain it well enough.

       

      If  I use the date slicer to filter my averages for only 2017, I get the output below:

       

      The problem is that a date that is earlier than the selected range is used within the measures.

       

      When I filter the rows in the query editor to only dates in 2017 I get the following output:

      For the same ID the date now is within 2017, which is what I want.

       

      Does this explain my problem more clearly?

       

       Kind regards

      • Anonymous's avatar
        Anonymous
        Not applicable
        8 years ago

        HI SNV,

         

        I can't got your logic.

         

        In your visual, you use the 'group' as the axis, so this graph shows summarized result by group column. When you filter on matrix by specific ID, then graph will change.

         

         

        BTW, if you want to use show the correspond result, you need to modify your chart and use 'ID' as the axis.

         

        Regards,

        Xiaoxin Sheng