GeeksforGeeks

Replace Last Comma in Character with &-Sign in R

Last Updated: 23 July 2025

A string in R is a sequence of characters which contains numbers, characters, and special symbols. The characters can be modified, inserted as well as deleted in the strin...read more

Extract First or Last n Characters from String in R

Last Updated: 01 May 2022

In this article, we will know how to extract the last and first char from a given string in the R programming language.For the example purpose, "Geeks for Geeks is Great" ...read more

How to Replace NAs with Strings in R?

Last Updated: 28 November 2021

In this article, we will discuss how to Replace NAs with strings in R Programming Language. NA stands for Not a Number, we can replace NA with strings in the dataframe.Cre...read more

How to Remove Dollar Signs in R?

Last Updated: 28 November 2021

The gsub() method in base R is used to replace all the matches of a pattern from a string. In case the pattern is not contained within the string, it will be returned as i...read more

How to Convert String to Datetime in R?

Last Updated: 27 December 2021

In this article, we will discuss how to convert String to Datetime in R Programming Language. We can convert string to DateTime by using the POSIXct functionSyntax: as.POS...read more

Replace Multiple Letters with Accents in R

Last Updated: 17 October 2021

In this article, we will discuss how to replace multiple letters with accents using R programming language.Method 1: Using chartr methodchartr() method in R is used to per...read more

Sequence of Alphabetical Character Letters from A-Z in R

Last Updated: 23 July 2025

In this article, we are going to discuss how to get a sequence of character letters from A-Z in R programming language.Return all lower case letters using letters function...read more

Replace Specific Characters in String in R

Last Updated: 23 September 2021

In this article, we will discuss how to replace specific characters in a string in R Programming Language.Method 1: Using gsub() functionWe can replace all occurrences of ...read more

Replace Character Value with NA in R

Last Updated: 29 September 2021

In this article, we are going to see how to replace character value with NA in R Programming Language.We can replace a character value with NA in a vector and in a datafra...read more

Split Character String at Whitespace in R

Last Updated: 23 July 2025

In this article, we are going to discuss how to split character strings at white space in R programming language.Method 1: Using strsplit() functionstrsplit() function is ...read more

Remove All Special Characters from String in R

Last Updated: 23 August 2021

In this article, we are going to remove all special characters from strings in R Programming language. For this, we will use the str_replace_all() method to remove non-alp...read more

Remove Newline from Character String in R

Last Updated: 23 July 2025

In this article, we are going to see how to remove the new line from a character string in R Programming Language.Example:Input: String with newline: "Hello\nGeeks\rFor\r\...read more

Remove All White Space from Character String in R

Last Updated: 23 July 2025

In this article, we are going to see how to remove all the white space from character string in R Programming Language.We can do it in these ways:Using gsub() function.Usi...read more

Repeat Character String N Times in R

Last Updated: 09 February 2022

In this article, we will discuss how to repeat the character string N times in the R programming language. Character string means a set of characters .Example:"Hello Geek"...read more

How to calculate the number of occurrences of a character in each row of R DataFrame ?

Last Updated: 18 April 2022

In this article, we will discuss how to calculate the number of occurrences of a given character in each row in DataFrame in R Programming Language.Method 1: Using stringr...read more