CODEWITHSUNDEEP
r
jenswirf
jenswirf

Reputation: 7317

How to get all arguments passed in a function?

Is there a way to "access" all passed arguments in a function? I beleive this can be done i javascript through the arguments array, is there an equivalent in R?

myfunc <- function() {
    print(arguments[1])
    print(arguments[2])
}

R> myfunc("A","B")

[1] "A"
[1] "B"

Upvotes: 1

Views: 1211

Answers (1)

Joshua Ulrich
Joshua Ulrich

Reputation: 176648

Technically, your function has no arguments, so passing arguments to it is an error.

That said, at minimum you would need .... If you do that, you can use list on ... and then access the names of your copy of .... For example:

myfunc <- function(...) {
  names(list(...))
}

Another approach would be to parse the call with match.call. For example:

myfunc <- function(A, B) {
  names(match.call()[-1])
}

Upvotes: 10

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