COALESCE inside CALCULATE ignores FILTER

[murkysalt46]

This DAX measure to count rows of table when year is not "2023", will return 0 when the year is "2023" (row context). I would prefer it to be blank as a value of 0 does not make sense for this year. 0 is still required for other years, however.  

CALCULATE(
    COALESCE(COUNTROWS( Table_A ), 0),
    FILTER( 
        Table_A, 
        Table_A[YEAR] <> "2023"
    )
)

 
Note that I cannot use external filters as this is part of a SWITCH, and "2023" may be required on other branches. 

[v-cgao-msft]

Hi @murkysalt46 ,

Try a branching structure with 2023 returning blank and the rest returning COALESCE(COUNTROWS( Table_A ), 0):

VAR __cur_year = SELECTEDVALUE('Table_A'[Year])
VAR __row_count = COUNTROWS('Table_A')
VAR __result = IF(__cur_year <> "2023",  COALESCE(__row_count,0))
RETURN
__result

Best Regards,
Gao
Community Support Team

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[murkysalt46]

Thanks for taking the time to answer Gao. This works!....sometimes. As soon as a slicer is placed on TableA the 0's are filled in for "2023". I'll show with two snippets:

Without interaction of the slicer (blanks for col's with no data):

With interaction (0's for columns with no data):

Added a RAND() factor to obscure the data somewhat.

[lbendlin]

That's not what COALESCE is for. COUNTROWS never returns BLANK(), it always returns at least 0.

You code is equivalent to 

COUNTROWS(FILTER(Table_A,[Year]<>"2023"))

Make sure your year column is actually text.

[murkysalt46]

Thanks for replying, but you are incorrect. These two queries produce different results.

In your example, COUNTROWS is not performed on the rows of the table where Year = "2023", therefore the result is blank. However, I need the result to be 0 where year is "2024", hence the COALESCE (or + 0). I suppose in my example above, it isn't clear that there isn't any data for "2024". But I need it to show 0 for all other values of year (just not "2023").

[lbendlin]

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