Unexpected output - sumx

[hungbm12]

Hi everyone,

I don't understand the result of the Total row (I expect it was 4)

Here the data:

Anyone help me?

[FreemanZ]

hi @hungbm12 

Trying to understand how your code works. It shall be executed like this:

measure 3 = 
SUMX(
    DISTINCT(Sheet1[category]), //1.scans category A then B
    CALCULATE(  //2.convert row context A(B) to filter context A(B)
        SUM( Sheet1[value]), //7. it get 2+2 when scanning A in step 1 and another 2+2 in scanning B, so comes 8
        FILTER( // 6. filter context A(B) is replaced by the outcome of FILTER, which is two 24 Dec rows.
            Sheet1,     //3.scan the original Sheet1 
            VAR _maxdate = MAX(Sheet1[Date])  // 4. _maxdate equals 24 Dec
            RETURN [date]=_maxdate   //5. filter in two rows on 24 Dec.
        )
    )
)

p.s.

[date]=MAX(Sheet1[Date])

is a misleading syntax sugar and thus extended to:

VAR _maxdate = MAX(Sheet1[Date]) 
RETURN [date]=_maxdate

[FreemanZ]

hi @hungbm12 

try like:

measure2 = COUNTROWS(Sheet1)

it worked like this:

[ValtteriN · Accepted solution]

Hi,

I recommend reading this article by SQLBI about the total row: https://www.sqlbi.com/articles/why-power-bi-totals-might-seem-inaccurate/

The behaviour of totals is a bit wonky in Power BI.

For a solution try something like this:

Dax:

Measure 29 =

var _mdate = CALCULATE(MAX('Table (18)'[date]),ALL('Table (18)'[date])) return

CALCULATE(SUM('Table (18)'[value]),'Table (18)'[date]=_mdate,ALL('Table (18)'[date]))

I hope this post helps to solve your issue and if it does consider accepting it as a solution and giving the post a thumbs up!

My LinkedIn: https://www.linkedin.com/in/n%C3%A4ttiahov-00001/

[hungbm12]

I'm sorry but if I changed the 4th row to December 28th, Total row = 2 (not as I expect). I expect it get the newest value of each Category and return 4