December 2014
Intermediate to advanced
858 pages
40h 10m
English
Content preview from SAS Certification Prep Guide, 4th EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Storing Data in SAS Data Sets
Overview
In many
cases, it is best practice for you to store data in SAS data sets.
You can optimize performance if you know when you should create a
SAS data set and when you should read data directly from an external
file.
Before viewing the comparative
example that illustrates different techniques for reading from a SAS
data set versus from an external file, consider the following advantages
of storing data in SAS data sets.
When you use SAS to repeatedly analyze or manipulate any particular group of data, it is more efficient to create a SAS data set than to read the raw data each time. Although SAS data sets can be larger than external files and can require more disk space, reading from SAS data sets saves ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.