It is due to the addition to src/main/error.c:652
if (traceback && ! oldInError) {
^^^^^^^^^^^^^^^
so I think we need Luke's help. By the time this is called inError has
been saved twice, once as 0 and once as 1. I suspect it should be inError
here rather than oldInError: one wants .Traceback created after error
handling has almost finished.
On Sat, 8 Nov 2003, Roger D. Peng wrote:
> Since it's heading towards release, I thought I'd bring this up again.
> I'm still not getting any traceback()'s in recent R-patched. For
> example, I get:
>
> > log("a")
> Error in log(x) : Non-numeric argument to mathematical function
> > traceback()
> No traceback available
>
> Or when running the examples in the traceback() help page:
>
> > foo <- function(x) { print(1); bar(2) }
> > bar <- function(x) { x + a.variable.which.does.not.exist }
> > ## Don't run:
> > foo(2) # gives a strange error
> [1] 1
> Error in bar(2) : Object "a.variable.which.does.not.exist" not found
> > traceback()
> No traceback available
>
> It seems the .Traceback variable is not being created. If I'm doing
> something incorrectly, I'd very much like to know. I'm starting up with
> R --vanilla.
>
> > version
> _
> platform i686-pc-linux-gnu
> arch i686
> os linux-gnu
> system i686, linux-gnu
> status alpha
> major 1
> minor 8.1
> year 2003
> month 11
> day 07
> language R
> > search()
> [1] ".GlobalEnv" "package:methods" "package:ctest" "package:mva"
> [5] "package:modreg" "package:nls" "package:ts" "Autoloads"
> [9] "package:base"
> >
>
>
> -roger
>
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>
>
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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