October 2019
Intermediate to advanced
430 pages
19h 4m
English
Content preview from SAS Certified Professional Prep Guide
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Performing Pattern Matching with Perl Regular Expressions
A Brief Overview
Perl regular expressions
enable you to perform pattern matching by using functions. A regular
expression is a sequence of strings that defines a search
pattern.
For example, suppose
you have the Certadv.NANumbr data set, which contains phone numbers
for the United States, Canada, and Mexico.
Figure 14.3 Certadv.NaNumbr Data Set (partial output)
By using a regular expression, you can find valid values for Phone. The advantage of using regular expressions is that you can often accomplish in only one Perl regular expression function something that would require a combination ...
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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.