DAX TOPN - Get top 5 count from split by values of another column

[janinw]

Dear all,

I am struggling with the following:

I have a table with several columns: 'date', 'ticket_id', 'reason_group', 'reason_specific'.

What I want:

• Get the top 5 reasons from the column 'reason_specific'
• Based on the distinct count of the column 'ticket_id'
• Then use this top 5 as a filter for a visual

So, the first 5 reasons of the table below should be the filter for a visual.

I am getting really lost with the TOPN, CALCULATE, CALCULATETABLE, SUMMARIZE.

Best,
Janine

[janinw]

Hi @Fowmy 

Please find a dummy dataset as requested here: Dummy Data 

Thanks,

Janine

[Fowmy]

@janinw 

Please find below the measure:

Top 5 Reason = 
var __rank = 
RANKX (
    CALCULATETABLE (
        SUMMARIZE ( Sheet1, Sheet1[reason_specific_en] ),
        ALLSELECTED ( Sheet1)
    ),
    CALCULATE ( DISTINCTCOUNT ( Sheet1[ticket_id] ) ),
    ,
    DESC,
    DENSE
)
return

IF( 
    __rank <= 5 , 
    DISTINCTCOUNT ( Sheet1[ticket_id] )
)

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[janinw]

@Fowmy  - your solution did not help in using it as a filter for a visual unfortunately. I had done similar things before, but that does not get me to what I want to do with it.

[janinw · Accepted solution]

Hi all,

I have realised an easy way of getting where I want is by doing the following:

• Create a measure that calculates the % (or number) for reason_specific:
  perc_tickets = divide(distinctcount([ticket_id]), calculate(distinctcount([ticket_id]), all([reason_specific])))
• Then use the Top N filter type in PowerBI desktop.

[Fowmy]

@janinw 

Can you share your data as a sample? This will help me to build the right solution as expected. You may create a dummy data set in Excel with the desired output.
You can save your files in OneDrive, Google Drive, or any other cloud sharing platform and share the link here.
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