The “str_to_upper” Function in R

• Package: stringr

• Purpose: To convert the characters in a character vector to uppercase.

• General Class: String Manipulation

• Required Argument(s):

• string: A character vector to be converted to uppercase.

• Notable Optional Arguments:

• None

• Example:

• # Example usage
  library(stringr)
  
  words <- c("apple", "banana", "orange", "grape")
  
  # Convert all words to uppercase
  uppercased_words <- str_to_upper(words)
  
  print(uppercased_words)

• In this example, the str_to_upper function from the stringr package is used to convert all words in the character vector words to uppercase. The result is a character vector with the uppercase versions of the original words.