It counts the number of times a field 'NumberOfParks' has crossed a threshold value. Right now it takes into consideration the complete set of Dimension (Years in this case). How can I restrict my variable to consider only a subset of data and then compute the count of NumberOfParks? What will be the Set Analysis Expression for this variable?
Please find attached the sample. Variable I'm talking about is 'counter'. I want counter to consider only Years till 2002 and leave the Year '2003' from consideration for calculating NumberOfParks.