Chapter 11. String Manipulation
Although R is a statistical language with numeric vectors and matrices playing a central role, character strings are surprisingly important as well. Ranging from birth dates stored in medical research data files to text- mining applications, character data arises quite frequently in R programs. Accordingly, R has a number of string-manipulation utilities, many of which will be introduced in this chapter.
An Overview of String-Manipulation Functions
Here, we’ll briefly review just some of the many string-manipulation functions R has to offer. Note that the call forms shown in this introduction are very simple, usually ...
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