Im new at SAS so i apologize for asking what i assume is a pretty basic function. I have a few million observations and i cant just edit my csv file so i need to manipulate the data in SAS. Im looking to use a function to make a calculation based on any changes in the data in the first two columns.
I would be grateful if someone can tell me if this is possible or do i have to use the proc sql command. Perhaps a screenshot and my coding will help explain better.