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lancea's avatar
lancea
Helper I
5 years ago
Solved

TopN returns different results when adding additional column

I am generating the following table below which just displays week number, total for the week (sum of sales), and a measure for calculating 8-week Running Total: My problem is that, when I add...
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  • v-xulin-mstf's avatar
    v-xulin-mstf
    5 years ago

    Hi lancea,

     

    Try measure as:

    8wk_Total =
VAR LastWeek = MAX ( Query1[Week] )
VAR Last8Weeks = TOPN (8, FILTER ( ALL ( Query1[Week] ), Query1[Week] <= LastWeek ), Query1[Week], DESC)
RETURN
CALCULATE ( SUM ( Query1[Sales] ), FILTER(ALL('Query1'),Query1[Week] IN Last8Weeks )

    Here is the output:

     

    If you still have some question, please don't hesitate to let me known.‌‌

     

    Best Regards,

    Link

     

    Is that the answer you're looking for? If this post helps, then please consider Accept it as the solution. Really appreciate!

amitchandak's avatar
amitchandak
Super User
5 years ago

lancea , In such case better to have separate week or date table, That will allow you to all or allselected of table then column

 

8wk_Total =
VAR LastWeek = MAX ( Query1[Week] )
VAR Last8Weeks = TOPN (8, FILTER ( ALL ( Week[Week] ), Query1[Week] <= LastWeek ), Query1[Week], DESC)
RETURN
CALCULATE ( SUM ( Query1[Sales] ), Last8Weeks )

lancea's avatar
lancea
Helper I
5 years ago

Sorry, this does not work and returns error in the formula:

 

For reference, I created a Week_Table using the formula:

Week_Table = UNION(VALUES(Query1[Week]),{""})
 
Then I created a 1:* relationship between Query1 and Week_Table (the only other alternative is *:*)
  • amitchandak's avatar
    amitchandak
    Super User
    5 years ago

    lancea , change topN like and try

     

    TOPN(10,filter(all(WeekTable[Week]), WeekTable[Week] <=max(WeekTable[Week])),WeekTable[Week],DESC)

    • lancea's avatar
      lancea
      Helper I
      5 years ago

      It works now but unfortunately, I still get the same results:

       

       

      Here is my formula for 8wk_separate:

       

      8wk_separate = VAR LastWeek = MAX ( Query1[Week] )
      VAR Last8Weeks = TOPN(10,filter(all(Week_Table[Week]), Week_Table[Week] <=max(Week_Table[Week])),Week_Table[Week],DESC)
      RETURN
      CALCULATE ( SUM ( Query1[Total PO lines due this week (CRD)] ), Last8Weeks )