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.
--
O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B
c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907
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