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janinw's avatar
janinw
Helper I
4 years ago
Solved

Visual with Top N not working upon using one specific filter - shows same value for each

Hi,

 

I have a visual which shows the top 5 reasons of why customers churn.

 

The value of each reason's share is calculated like so

Share of Tickets by Reason = DIVIDE (DISTINCTCOUNT(table[ticket_id]),CALCULATE (DISTINCTCOUNT(table[ticket_id]), ALL((table[Reason]))))
 
The visual, without any filters set, normally looks as follows

 

Then, when I use a page filter (by slicer) for week selection

 

This is what happens


 

When I use a page filter that for example filters for months, it works all fine, it shows the visual as it should, showing for all the weeks within these months. Only with this week filter I get a flat line for each reason and they all have a share of 100%. (It only happens within this visual, any tables that show the same metric work perfectly fine.)

I am lost - any help is appreciated.

 

Best,
Janine

 
 
Need Help
  • janinw's avatar
    janinw
    4 years ago

    HI MFelix thanks for your answer, with a little help from your answer and some more PowerBI DAX researching (and blunt trying out) I managed to solve the issue by changing the DAX from

    ALL((table[Reason])

    to 

     

    ALLEXCEPT(no_appointment_reasons, no_appointment_reasons[reporting_week])

    As I want to calculate the percentage over all the tickets from that week, as it is displayed on a weekly level in the visual.

2 Replies

  • janinw's avatar
    janinw
    Helper I
    4 years ago

    HI MFelix thanks for your answer, with a little help from your answer and some more PowerBI DAX researching (and blunt trying out) I managed to solve the issue by changing the DAX from

    ALL((table[Reason])

    to 

     

    ALLEXCEPT(no_appointment_reasons, no_appointment_reasons[reporting_week])

    As I want to calculate the percentage over all the tickets from that week, as it is displayed on a weekly level in the visual.
  • MFelix's avatar
    MFelix
    Super User
    4 years ago

    Hi janinw ,

     

    You are making the ranking using the ALL statement, further more you do it based on a column that is the column Reason that way the calculation will only be correct when you have all the values in your table select so when you start to make filters based on other columns the table/column/row context changes and your result always returns 1.

     

    Can you please share a mockup data or sample of your PBIX file. You can use a onedrive, google drive, we transfer or similar link to upload your files.

    If the information is sensitive please share it trough private message.