03-27-2012 12:50 PM
Sorry if this is a basic question for the forum, but I would appreaciate help.
I used a PROC expand step to create a lag in my data set and the data that was previously 0 is now very small scinetific numbers. Can I add an if/then statement within the PROC expand step that if the vaiable is < 0 that it =0? Or is that a seperate data step?
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