checking if a substring exists in a string r
grepl(regex, string_to_search)checking if a substring exists in a string r
grepl(regex, string_to_search)check if a string is contained in a column R
fruit <- c("apple", "banana", "pear", "pinapple") # [1] TRUE
identical(str_detect(fruit, "a"), grepl("a",fruit)) # [1] TRUE
identical(str_detect(fruit, "^a"), grepl("^a",fruit)) # [1] TRUE
identical(str_detect(fruit, "a$"), grepl("a$",fruit)) # [1] TRUE
identical(str_detect(fruit, "b"), grepl("b",fruit)) # [1] TRUE
identical(str_detect(fruit, "[aeiou]"), grepl("[aeiou]",fruit)) # [1] TRUECopyright © 2021 Codeinu
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