But when I choose year =2016 , when I choose CAREA 2015 =<>0
Date format stored in Qlikview
Expression :=if(IsNull(GetFieldSelections(Week,'*')),Sum({$<Year={$(=max(Year-1))}>}[Prix de vente TTC]),Sum({$<Weekyear= {$(=max(Weekyear-1))}>}[Prix de vente TTC]))
How to get values for last year when I choose from .. to date ?