September 2019
Beginner to intermediate
346 pages
7h 35m
English
Content preview from Hands-On SAS for Data Analysis
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Compression
Compression reduces the number of bytes that are required to store each observation. The advantage of compression is that it requires less storage, owing to the fact that fewer bytes are required and fewer I/O operations are necessary to read or write to the data during processing.
The biggest disadvantage of compression is that more CPU resources are required to read a compressed file and there are situations where the resulting file size might increase rather than decrease the time that's required to execute SAS statements. This is one of the reasons why many SAS users end up not compressing datasets and miss out on the advantages. Users need to be aware that some SAS administrators are known to make compression the default ...
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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.