Trying to get a value from the first week in a graph from a pivot table to use as baseline

[Belarminio]

i'm looking to graph this pic below the baseline line has to be a value from the first week. This formula does the trick

CALCULATE(SUM('All Weekly Data'[Bodies for Week]),ALLSELECTED('All Weekly Data'),'All Weekly Data'[Source]="Current",'All Weekly Data'[Week Ends] = DATE(2022,3,12) )

however i need it to be dinamic and since i'm hard coding the Date(2022,3,12) that not posible.

i have tried a number of combinations of Filter funtion and i can't get anything to work. any help would be much appreciated.

+

[Greg_Deckler]

@Belarminio Maybe:

Measure =
  VAR __Date = MIN('All Weekly Data'[Week Ends])
  VAR __Result =  
CALCULATE(SUM('All Weekly Data'[Bodies for Week]),ALLSELECTED('All Weekly Data'),'All Weekly Data'[Source]="Current",'All Weekly Data'[Week Ends] = __Date )
RETURN
  __Result

[Belarminio]

Thanks for your reply Greg i did not mentioned that i tryed that before and i get an error when i do. i think that your example is from Power BI, how ever i'm using the DAX in Powere Pivot.

Var 1:=CALCULATE(MIN('All Weekly Data'[Week Ends]),ALLSELECTED('All Weekly Data'[Week Ends]))

Var 2:=CALCULATE(SUM('All Weekly Data'[Bodies for Week]),ALLSELECTED('All Weekly Data'),'All Weekly Data'[Source]="Current",'All Weekly Data'[Week Ends] = [Var 1] )

if i use this formula 

Var 2:=CALCULATE(SUM('All Weekly Data'[Bodies for Week]),ALLSELECTED('All Weekly Data'),'All Weekly Data'[Source]="Current",FILTER('All Weekly Data','All Weekly Data'[Week Ends] = [Var 1] ))

Then i get this result.. as you can see the the date is fine in the Var 1 column, but the Var 2 is still not giving me the the number in the 1st week... for some reason not clear to me the ALLSELECTED funtion is bein cancelled by the FILTER funtion somehow.

[v-rzhou-msft]

Hi @Belarminio ,

Here I suggest you to try this code.

Measure =
VAR _MINDATE =
    CALCULATE (
        MIN ( 'All Weekly Data'[Week Ends] ),
        FILTER ( ALL ( 'All Weekly Data' ), 'All Weekly Data'[Source] = "Current" )
    )
RETURN
    CALCULATE (
        SUM ( 'All Weekly Data'[Bodies for Week] ),
        ALLSELECTED ( 'All Weekly Data' ),
        'All Weekly Data'[Source] = "Current",
        'All Weekly Data'[Week Ends] = _MINDATE
    )

Best Regards,
Rico Zhou

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Belarminio · Accepted solution]

Thanks every one for your help the answer you provided makes absolute sense but still it give me an error.  I tried several things and again not sure why these solutions don’t work because the look logical.  If that works for you the error may have something to do with the version of power BI I use I am really not sure but I tried that variation and still got an error. The error happens because of this section 'All (Weekly Data'[Week Ends] = _MINDATE  it just wont take it.

Happily I have tried enough spaghetti in the wall that something finally stuck. This solution actually worked.  

First Week:=if(CALCULATE(MIN('All Weekly Data'[Week Ends]),ALLSELECTED('All Weekly Data')) = MIN('All Weekly Data'[Week Ends]),MIN('All Weekly Data'[Week Ends]),BLANK())

Cost - Base Line:=CALCULATE(SUM('All Weekly Data'[Cost for Week]),FILTER(ALLSELECTED('All Weekly Data'),'All Weekly Data'[Week Ends]=[First Week]), 'All Weekly Data'[Source]= "Current")