The “str_detect” Function in R
Package: stringr
Purpose: To detect if a pattern is present in each element of a character vector.
General Class: String Manipulation
Required Argument(s):
string: A character vector in which to detect patterns.
pattern: The pattern to be detected.
Notable Optional Arguments:
...: Additional arguments influencing the detection process, such as ignore_case to perform case-insensitive matching.
Example:
# Example usage
library(stringr)
words <- c("apple", "banana", "orange", "grape")
# Check if each word contains the letter "a"
contains_a <- str_detect(words, pattern = "a")
print(contains_a)In this example, the str_detect function from the stringr package is used to check if each element of the character vector words contains the letter “a”. The result is a logical vector indicating whether the pattern is present in each element.
