Max function does not work when using slicer?

[Anonymous]

The measure below works fine below until I select the year in a slicer.  The years in my app are 2014 - 2017 and the expression below correctly assumes max year -1 (2016) when nothing is selected, but when I select 2017 it goes blank.

The goal is if I select 2017 in the slicer then expression below counts for year 2016 and so on...

CountHeadcountPriorYear =
calculate(COUNTROWS(LnkAssociatesPeriod),FILTER(LnkAssociatesPeriod,LnkAssociatesPeriod[Period_Year]=Max(LnkAssociatesPeriod[Period_Year])-1),LnkAssociatesPeriod[AssociatesATSkey])

[KHorseman]

If you select a year in the slicer, the entire table is filtered to that year. That year - 1 is excluded by your slicer selection. You would need to remove the filter context from the measure using ALL.

CountHeadcountPriorYear =
calculate(COUNTROWS(LnkAssociatesPeriod),FILTER(ALL(LnkAssociatesPeriod),LnkAssociatesPeriod[Period_Year]=Max(LnkAssociatesPeriod[Period_Year])-1),LnkAssociatesPeriod[AssociatesATSkey])

...should work, but to be safe I would use a variable to keep the slicer selection separate from your filter statement...

CountHeadcountPriorYear =VAR targetyear = Max(LnkAssociatesPeriod[Period_Year])-1
RETURN CALCULATE(COUNTROWS(LnkAssociatesPeriod),FILTER(LnkAssociatesPeriod,LnkAssociatesPeriod[Period_Year]=targetyear),LnkAssociatesPeriod[AssociatesATSkey])

[Anonymous]

Thanks so much for the help.

I used your expression but now I am getting an error that says "the following syntax error occurred during parsing; invalid token , line 2, offset 57". 

Z

[v-yuezhe-msft · Accepted solution]

@Anonymous,

I create two new measures using the following DAX , both work well. Could you please post a screenshot about your scenario and share sample data of your table here?

CountHeadcountPriorYear =
calculate(COUNTROWS(LnkAssociatesPeriod),FILTER(ALL(LnkAssociatesPeriod),LnkAssociatesPeriod[Period_Year]=Max(LnkAssociatesPeriod[Period_Year])-1),LnkAssociatesPeriod[AssociatesATSkey])

CountHeadcountPriorYear =VAR targetyear = Max(LnkAssociatesPeriod[Period_Year])-1
RETURN CALCULATE(COUNTROWS(LnkAssociatesPeriod),FILTER(ALL(LnkAssociatesPeriod),LnkAssociatesPeriod[Period_Year]=targetyear),LnkAssociatesPeriod[AssociatesATSkey])

Regards,
Lydia

[Anonymous]

Thanks - it worked!