R: Argument Matching

match_arg {filesstrings}

R Documentation

Argument Matching

match_arg(arg, choices, index = FALSE, several_ok = FALSE,
  ignore_case = FALSE)

`arg`	A character vector (of length one unless `several_ok = TRUE`).
`choices`	A character vector of candidate values.
`index`	Return the index of the match rather than the match itself? Default no.
`several_ok`	Allow `arg` to have length greater than one to match several arguments at once? Default no.
`ignore_case`	Ignore case while matching. Default no. If this is `TRUE`, the returned value is the matched element of `choices` (with its original casing).

[Package filesstrings version 3.0.0 Index]