The “str_replace_all” Function in R

• Package: stringr

• Purpose: To replace all occurrences of a matched pattern in a character vector with a new value.

• General Class: String Manipulation

• Required Argument(s):

• string: A character vector in which to replace patterns.

• pattern: The pattern to be replaced.

• replacement: The replacement value or pattern.

• Notable Optional Arguments:

• ...: Additional arguments influencing the replacement process, such as ignore_case to perform case-insensitive matching.

• Example:

• # Example usage
  library(stringr)
  
  sentence <- "The quick brown fox jumps over the lazy dog. The fox is a clever animal."
  
  # Replace all occurrences of "fox" with "cat"
  modified_sentence <- str_replace_all(sentence, pattern = "fox", replacement = "cat")
  
  print(modified_sentence)

• In this example, the str_replace_all function from the stringr package is used to replace all occurrences of the pattern “fox” with the replacement “cat” in the character vector sentence. The result is a modified character vector with all instances replaced.