September 2018
Intermediate to advanced
386 pages
17h 24m
English
Content preview from SAS Certification Prep Guide, 5th Edition
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Chapter 8: BY-Group Processing
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Correct answer: dWhen you use the BY statement with the SET statement, the DATA step creates the temporary variables FIRST. and LAST. They are not stored in the data set.
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Correct answer: dBefore you can perform BY-group processing, your data must follow a pattern. If your data is not ordered or grouped in some pattern, BY-group processing results in an error.
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Correct answer: aIn the DATA step, during BY-group processing only, the temporary variables FIRST.variable and LAST.variable are available for DATA step programming, but they do not appear in the output data set.
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Correct answer: cThe SORT procedure sorts the data Cert.Credit by the variable Type in ascending order. You do not have to ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.