I have raw data which contains data for year 2008 and 2009 full data.I want see sales for current month and previous 3 month. Like if i select Jan2009 then it has to show me Sales for Jan2009,Dec2008,Nov2008,Oct2008. But i want to see some function in the CALCULATED DIMENSION NOT IN EXPREESION (i.e Not using only(month),only(month)-1 etc and this type of function in Expression)
