R Academy · Lesson

String Manipulation

Extract, replace, and split text data using R’s string functions for efficient text processing.

Lesson 1 of 310 steps

String Manipulation is a free R Academy lesson on CoddyKit. This is lesson 1 of 3. Any 3 lessons of this learning path are free to read in full — after that, CoddyKit PRO unlocks every lesson, plus hands-on practice with a built-in code editor and a 24/7 AI tutor. It is part of the R Academy learning path, and your progress syncs across the web and the CoddyKit app. The R Academy course includes 3 lessons in total.

Introduction to String Manipulation in R

String manipulation is essential for working with text data. In this lesson, you'll learn how to process and modify strings in R.

Creating Strings

You can create strings using quotes.

text <- 'Hello, R!'
print(text)

Concatenating Strings

The paste() function combines multiple strings.

name <- 'John'
message <- paste('Hello,', name)
print(message)

Changing Case

Use toupper() and tolower() to modify case.

toupper('hello')
tolower('WORLD')

Extracting Substrings

Use substr() to extract parts of a string.

text <- 'Hello, R!'
substr(text, 1, 5)

Replacing Text

The gsub() function replaces text within a string.

gsub('R', 'World', 'Hello, R!')

Splitting Strings

Use strsplit() to break a string into parts.

strsplit('apple,banana,orange', ',')

Checking String Length

Use nchar() to count the number of characters in a string.

nchar('Hello, R!')

Summary

In this lesson, you learned:

How to create and concatenate strings.
How to change case and extract substrings.
How to replace and split text in R.

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Frequently Asked Questions

Is the “String Manipulation” lesson free?

Yes — any 3 lessons of the R Academy learning path, including “String Manipulation”, are free to read in full here on the web. After that, CoddyKit PRO unlocks every lesson, plus interactive practice with a built-in code editor and a 24/7 AI tutor. The R Academy course includes 3 lessons in total.

What will I learn in “String Manipulation”?

Extract, replace, and split text data using R’s string functions for efficient text processing. You practise R Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.

Do I need any experience to start R Academy?

No prior experience is required. R Academy on CoddyKit is structured for beginners through advanced learners, so you can start here or from the beginning and move at your own pace. This is lesson 1 of 3.

How long does the “String Manipulation” lesson take?

Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.

Can I write and run code in this R Academy lesson?

Yes. Every R Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.

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