topic identifying observations 12 month period in SAS Programming

identifying observations 12 month period

G_I_Jeff — Tue, 14 Jun 2016 13:52:17 GMT

I can't find an example using a DATA step with multiple SET statements.

I need to find previous 12 months observations based off a DATETIME value.

I'm pulling previous month easily by:

MONTH(DATEPART(DATETIME)) = MONTH(TODAY() -1);

I remember running across an example before but cannot find it.

Re: identifying observations 12 month period

RW9 — Tue, 14 Jun 2016 14:05:48 GMT

Its quite hard to see what your after from that, test data in the form of a datastep and what you want out will help. Can you not sort the data, then use lag()? SQL can simply merge these too. If its an agregate then a where might be better.