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Rename Duplicated Character Strings

Source: R/misc.R
unduplicateNames.Rd

Append numeric suffices to character strings, to avoid repeats. This is used by various data input functions, to handle the fact that several oceanographic data formats permit the reuse of variable names within a given file.

Usage

unduplicateNames(strings, style = 1)

Arguments

strings

Vector of character strings.

style

An integer giving the style. If style is 1, then e.g. a triplicate of "a" yields "a", "a1", and "a2". If style is 2, then the same input yields "a_001", "a_002", and "a_003".

Value

Vector of strings with repeats distinguished by suffix.

See also

This is used in several functions, e.g. read.ctd.sbe() and read.odf().

Examples

unduplicateNames(c("a", "b", "a", "c", "b"))
#> [1] "a"  "b"  "a2" "c"  "b2"
unduplicateNames(c("a", "b", "a", "c", "b"), style = 2)
#> [1] "a_001" "b_001" "a_002" "c"     "b_002"