Elizabeth Axelrod
Using hash tables to build tables in memory enables you to solve interesting problems, using code that's quite straightforward. But not having a clear understanding of how your hash variables communicate with the Program Data Vector (PDV) can result in some unexpected results or unobserved errors. Using a few simple examples, this paper will follow some data as it makes its way through a DATA step, the PDV, and hash tables. Don't be a victim of a failure to communicate!
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