R Strings
String Literals
Strings are used for storing text.
A string is surrounded by either single quotation marks, or double quotation marks:
"hello" is the same as
'hello':
Assign a String to a Variable
Assigning a string to a variable is done with the variable followed by the <- operator and the string:
Multiline Strings
You can assign a multiline string to a variable like this:
Example
str <- "Lorem ipsum dolor sit amet,
consectetur adipiscing elit,
sed do
eiusmod tempor incididunt
ut labore et dolore magna aliqua."
str # print the value of str
Try it Yourself »
However, note that R will add a "\n" at the end of each line break. This is called an escape character, and the n character indicates a new line.
If you want the line breaks to be inserted at the same position as in the code, use the cat() function:
Example
str <- "Lorem ipsum dolor sit amet,
consectetur adipiscing elit,
sed do
eiusmod tempor incididunt
ut labore et dolore magna aliqua."
cat(str)
Try it Yourself »
String Length
There are many useful string functions in R.
For example, to find the number of characters in a string, use the nchar() function:
Check a String
Use the grepl() function to check if a character or a sequence of characters are present in a string:
Combine Two Strings
Use the paste() function to merge/concatenate two strings:
