Hello there, I recently restarted up my MPH after a long hiatus, and my SAS brain has completely atrophied! I am working on what should be a very easy procedure, however, I can't seem to get the syntax right. I have four categories of tobacco consumption, coded 1 2 3 and 4. I want to have 2 categories, low and high, with the first two (1 and 2) being low and the second 2 (3 and 4) being high. I need to do this to calculate measures of association between use and obesity. I was able to do this easily with the two category variable of case or control.
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