On 17 Nov 2006 15:59:24 +0100, Peter Dalgaard <[EMAIL PROTECTED]> wrote: > Robin Hankin <[EMAIL PROTECTED]> writes: > > > On 17 Nov 2006, at 14:14, Peter Dalgaard wrote: > > > > [snip] > > > > > > > > so a+b+c is really (a+b)+c and I was calculating a+(b+c). That's > > > actually a little bit harder because you don't get help from argument > > > matching: > > > > > > "++" <- function(...) if ((n <- nargs()) == 1) ..1 else { > > > l <- list(...) > > > do.call("++",l[-n]) + l[[n]] > > > } > > > > > > > > > Aha, the dreaded "..1" argument. Where do I look for documentation > > on this? > > > > [It is mentioned twice in The R Language Definition, but I'm no wiser] > > It's just the first of the ... arguments, essentially list(...)[[1]], > except for lazy evaluation details. The second one is ..2, and > so forth.
What are you referring to when writing "except for lazy function details"? ______________________________________________ R-help@stat.math.ethz.ch 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.