match_pattern: Pattern Matching
In bgreenwell/bpa: Basic Pattern Analysis

Description Usage Arguments Details Examples

Extract values from a vector that match a particular pattern.

1	match_pattern(x, pattern, unique_only = FALSE, ...)

`x`	A vector, typically of class `"character"`.
`pattern`	Character string specifying the particular pattern to match.
`unique_only`	Logical indicating whether or not to only return unique values. Default is `FALSE`.
`...`	Additional optional arguments to ba passed onto `get_pattern`.

The pattern specified by the required argument pattern must be a valid pattern produced by the get_pattern function. That is, all digits should be represented by a "9", lowercase/uppercase letters by a "a"/"A", etc.

1
2
3

phone <- c("123-456-7890", "456-7890", "123-4567", "456-7890")
match_pattern(phone, pattern = "999-9999")
match_pattern(phone, pattern = "999-9999", unique_only = TRUE)