String Manipulation
Extract, replace, and split text data using R’s string functions for efficient text processing.
String Manipulation is a free R Academy lesson on CoddyKit — lesson 1 of 3. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the R Academy learning path, one of 3 lessons in the course, and your progress syncs across the web and the CoddyKit app.
1
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.
2
Creating Strings
You can create strings using quotes.
text <- 'Hello, R!'
print(text)3
Concatenating Strings
The paste() function combines multiple strings.
name <- 'John'
message <- paste('Hello,', name)
print(message)4
Changing Case
Use toupper() and tolower() to modify case.
toupper('hello')
tolower('WORLD')5
Extracting Substrings
Use substr() to extract parts of a string.
text <- 'Hello, R!'
substr(text, 1, 5)6
Replacing Text
The gsub() function replaces text within a string.
gsub('R', 'World', 'Hello, R!')7
Splitting Strings
Use strsplit() to break a string into parts.
strsplit('apple,banana,orange', ',')8
9
Checking String Length
Use nchar() to count the number of characters in a string.
nchar('Hello, R!')10
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.
Frequently asked questions
Is the “String Manipulation” lesson free?
Yes — the full text of “String Manipulation” is free to read here on the web, and the R Academy course includes 3 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the R Academy course, upgrade to CoddyKit PRO.
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; this is — lesson 1 of 3, so you can start here or from the beginning and move at your own pace.
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.
All lessons in this course
- String Manipulation
- Regular Expressions
- Dates and Times in R