Strings are basically a bunch of character variables. It is a one-dimensional array of characters. One or more characters enclosed in a pair of matching single or double quotes can be considered as a string in R. Strings represent textual content and can contain numbers, spaces and special characters. An empty string is represented by using “”. Strings are always stored as double-quoted values in R. Double quoted string can contain single quotes within it. Single quoted strings can’t contain single quotes. Similarly, double quotes can’t be surrounded by double-quotes.

Creation of String

Strings can be created by assigning character values to a variable. These strings can be further concatenated by using various functions and methods to form a big string.
Example:

In R programming language, a string is a sequence of characters, which can include letters, numbers, symbols, and spaces. Strings are used to represent text data, such as names, addresses, and sentences.

In R, strings are enclosed in either single quotes ('') or double quotes (""). For example, "Hello World" and 'This is a string' are both valid strings in R. However, it is important to use consistent quotation marks to avoid errors.

One common use of strings in R is to manipulate and process text data. There are several functions in R that can be used to perform operations on strings, such as extracting a specific character or substring, converting the case of the text, and finding and replacing specific words or characters.

For example, the strsplit() function can be used to split a string into a vector of substrings based on a specified delimiter. The toupper() and tolower() functions can be used to convert the case of a string to all uppercase or all lowercase, respectively. The gsub() function can be used to find and replace specific characters or words within a string.

Overall, strings are an important data type in R programming language that is used to represent and manipulate text data.