Character (string) type in R Programming

Introduction

Character type stores text like words or sentences so you can work with letters and words in your program.

When you want to save a person's name in your program.

When you need to store a sentence or message to show later.

When you want to keep track of labels or categories like 'red', 'blue', or 'green'.

When you read text data from a file or user input.

When you want to combine or change words in your code.

Syntax

R Programming

my_text <- "Hello, world!"

# or single quotes also work
my_text <- 'Hello, world!'

Use double or single quotes to create character strings.

Everything inside the quotes is treated as text.

Examples

Stores the word Alice as a character string.

R Programming

name <- "Alice"

Stores a sentence as a character string.

R Programming

greeting <- 'Good morning!'

Creates an empty character string with no letters.

R Programming

empty_string <- ""

Stores a single letter as a character string.

R Programming

single_char <- "A"

Sample Program

This program joins two character strings with a space and prints the result.

R Programming

name <- "Bob"
greeting <- "Hello"
message <- paste(greeting, name)
print(message)

Important Notes

In R, character strings are always inside quotes.

Use the paste() function to join strings with spaces.

Empty strings "" are useful when you want a blank text value.

Summary

Character type stores text inside quotes.

Use character strings to work with words and sentences.

You can join strings using paste() to make new messages.