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lancea's avatar
lancea
Icon for Helper I rankHelper 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
Icon for Super User rankSuper 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
Icon for Helper I rankHelper 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 *:*)