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Fun with Looping Dates
by Russell Byers
This macro is useful for performing repetitive tasks on small portions of data.
Occasionally, SAS users may need to perform repetitive tasks using only small chunks of data at a time. For example, some data systems are so large they will only allow you to pull small portions of data per request (such as one month at a time). This macro, using the intnx function, takes an input date, and then calculates the beginning and end of each week, month, or year. The dates are then nested inside of a loop to perform whatever functions are needed.
Presented at a State of Oregon SAS Users Group meeting.