On 20/02/2018 5:47 PM, Rolf Turner wrote:
On 21/02/18 11:36, Spencer Graves wrote:
Hi, All:
How can I get the names of all the arguments in dots(...)?
I'm able to get the name of the first argument but not the second:
deparseDots <- function(...){
deparse(substitute(...))
}
a <- 1
b <- 2
deparseDots(a, b)
[1] "a"
> I'd like to get c('a', 'b').
Does
names(list(...))
do what you want?
No, that does what he asked for, not what he wants :-). Spencer, you
want to deparse all of the expressions in ..., not their names.
I think base R doesn't have a way to do this (but I may be wrong). You
can do it using some the rlang package. For example, this seems to work:
deparseDots <- function(...) {
unname(sapply(rlang::exprs(...), deparse))
}
Duncan Murdoch
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