The DO Loop

Statistical programming in SAS with an emphasis on SAS/IML programs
Learn SAS
Rick Wicklin 0
Oh, those pesky temporary variables!

The SAS/IML language secretly creates temporary variables. Most of the time programmers aren't even aware that the language does this. However, there is one situation where if you don't think carefully about temporary variables, your program will silently produce an error. And as every programmer knows, silent wrong numbers are

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