On Thu, Jan 13, 2011 at 7:36 PM, Sean Zhang <seane...@gmail.com> wrote:
> Dear R helpers:
>
> I like to apply deparse(substitute()) on multiple arguments to collect the
> names of the arguments into a character vector.
> I used function test.fun as below. it works when there is only one input
> argument. but it does not work for multiple arguements. can someone kindly
> help?
>
> test.fun <- function(...){deparse(substitute(...))}
> test.fun(x) #this works
> test.fun(x,y,z) # I like c('x','y','z') be the output, but cannot get it.
>Try this: > test.fun.2 <- function(...) sapply(match.call()[-1], deparse) > test.fun.2(x, y, z) [1] "x" "y" "z" You could consider replacing sapply with lapply since it will return a list of vectors if the arguments are complex -- so that would consistently return a list. -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
