On Tue, 20 Apr 2004 13:48:43 -0400 (EDT), "Gabor Grothendieck" <[EMAIL PROTECTED]> wrote :
> >In R 1.9.0 on Windows XP Pro I get an error if I try to >debug the identity function f shown: > > > f <- function(x)x > > debug(f) > > f(1) > debugging in: f(1) > Error in f(1) : Unimplemented feature in eval > > R.version.string > [1] "R version 1.9.0, 2004-04-12" > >Without debuggging its ok. Confirmed. It's not new in 1.9.0, it appears in 1.8.1 as well. It seems that a function body consisting of a single token triggers it. I get a crash from this variation: f <- function(x) 4 Maybe the system is trying to tell us that functions this simple don't need debugging? ;-) I'm sending this message to r-bugs to get it into the bug list (but I won't have time to look at it until at least the weekend, if someone else wants to fix it). Duncan Murdoch ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
