You can do something like this:
test <- function(x,...){
print(x)
args = list(...)
if('y' %in% names(args))print(args$y)
if('z' %in% names(args))print(args$z)
}
Regards
Søren
________________________________________
Fra: [email protected] [[email protected]] På vegne
af Jonathan Greenberg [[email protected]]
Sendt: 21. november 2011 23:18
Til: r-help
Emne: [R] How do I query "..." in a function call?
This is probably a very noobish question, but if I want to create a
function that allows an undetermined number of, say, numeric vectors to be
fed to it, I would use:
myfunction = function(...)
{
# Do something
}
Right? If so, how do I a) count the number of vectors "fed" to the
function, and b) how do I treat those vectors as variables, e.g. for the
call:
myfunction(c(1:10),c(2:11),c(3:13))
Thanks!
--j
--
Jonathan A. Greenberg, PhD
Assistant Professor
Department of Geography
University of Illinois at Urbana-Champaign
607 South Mathews Avenue, MC 150
Urbana, IL 61801
Phone: 415-763-5476
AIM: jgrn307, MSN: [email protected], Gchat: jgrn307, Skype: jgrn3007
http://www.geog.illinois.edu/people/JonathanGreenberg.html
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