August 2015
Beginner
520 pages
13h 7m
English
book
SAS Essentials: Mastering SAS for Data Analytics, 2nd Edition
by Alan C. Elliott, Wayne A. Woodward
Content preview from SAS Essentials: Mastering SAS for Data Analytics, 2nd Edition
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7SAS® ADVANCED PROGRAMMING TOPICS PART 2
This chapter continues with the presentation of topics that are useful in preparing a data set for analysis. The topics here are designed to provide greater flexibility in constructing SAS programs. Using these techniques can simplify coding for tasks that involve repeated or related observations.
7.1 USING SAS ARRAYS
A SAS ARRAY statement provides a method for placing a series of observations into a single variable called an array. Often these variables are referenced as part of a DO loop, which is a technique for iterating through a set of data. (DO loops are presented in the following section of this chapter.) A simplified syntax for SAS arrays is the following:
ARRAY ARRAY-NAME(SUBSCRIPT) <$> ARRAY-VALUESOne-dimensional arrays are specified with an ARRAY statement, such as
ARRAY TIME(1:6) TIME1-TIME6;This ARRAY statement creates a one-dimensional array called TIME1 with an index value indicated in a parenthesis so TIME(1)=TIME1, TIME(2)=TIME2, and so on. In this case, six values are assigned to the values TIME(1) through TIME(6). Here are some more ways to create an ARRAY:
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ARRAY TIME(6) TIME1-TIME6;The result is the same as the previous example.
ARRAY TIME(0:5) A B C D E F;TIME(0)=A, TIME(1)=B, and ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
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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.