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You're reading from  Learning R Programming

Product typeBook
Published inOct 2016
Reading LevelBeginner
PublisherPackt
ISBN-139781785889776
Edition1st Edition
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Kun Ren
Kun Ren
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Kun Ren

Kun Ren has used R for nearly 4 years in quantitative trading, along with C++ and C#, and he has worked very intensively (more than 8-10 hours every day) on useful R packages that the community does not offer yet. He contributes to packages developed by other authors and reports issues to make things work better. He is also a frequent speaker at R conferences in China and has given multiple talks. Kun also has a great social media presence. Additionally, he has substantially contributed to various projects, which is evident from his GitHub account: https://github.com/renkun-ken https://cn.linkedin.com/in/kun-ren-76027530 http://renkun.me/ http://renkun.me/formattable/ http://renkun.me/pipeR/ http://renkun.me/rlist/
Read more about Kun Ren

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Getting started with strings


Character vectors in R are used to store text data. You previously learned that in contrast with many other programming languages, a character vector is not a vector of single characters, letters, or alphabet symbols such as a, b, c. Rather, it is a vector of strings.

R also provides a variety of built-in functions to deal with character vectors. Many of them also perform vectorized operations so they can process numerous string values in one step.

In this section, you will learn more about printing, combining, and transforming texts stored in character vectors.

Printing texts

Perhaps the most basic thing we can do with texts is to view them. R provides several ways to view texts in the console.

The simplest way is to directly type the string in quotation marks:

"Hello"
## [1] "Hello"

Like a numeric vector of floating numbers, a character vector is a vector of character values, or strings. Hello is in the first position and is the only element of the character...

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Learning R Programming
Published in: Oct 2016Publisher: PacktISBN-13: 9781785889776

Author (1)

author image
Kun Ren

Kun Ren has used R for nearly 4 years in quantitative trading, along with C++ and C#, and he has worked very intensively (more than 8-10 hours every day) on useful R packages that the community does not offer yet. He contributes to packages developed by other authors and reports issues to make things work better. He is also a frequent speaker at R conferences in China and has given multiple talks. Kun also has a great social media presence. Additionally, he has substantially contributed to various projects, which is evident from his GitHub account: https://github.com/renkun-ken https://cn.linkedin.com/in/kun-ren-76027530 http://renkun.me/ http://renkun.me/formattable/ http://renkun.me/pipeR/ http://renkun.me/rlist/
Read more about Kun Ren