[R] bug in chdir option of source
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue Jul 12 13:56:37 CEST 2005
On Tue, 12 Jul 2005 usenet at s-boehringer.de wrote:
> I apologize for not having investigated enough.
> However I want to bring up the point that upgrading can be a very
> tedious thing. I administer a cluster for which upgrading brings it to a
> halt for several hours stopping all calculations going on. At the moment
> I have no way to go from 2.1.0 to 2.1.1.
> I just want to add this point to the release policy of R which
> historically has very quick release cycles which on the one hand is a
> very positive thing but on the other hand can be problematic with
> respect to some aspects.
I really don't understand. Just install the current R in a different
place and try it. If it works better, use it for newly-started jobs.
We too run a large cluster (and a few hundred loosely connected machines)
and are able to upgrade pretty transparently even when long jobs are
For those who are reluctant to upgrade, I would suggest never installing a
.0 release (of any software, not just R).
> Thanks again, Stefan
> On Tue, 2005-07-12 at 13:02, Prof Brian Ripley wrote:
>> Please read the posting guide (as we do ask) and use the current version
>> as it asks to see if the `bug' has already been fixed.
>> This was fixed a while ago, definitely in 2.1.1.
>> On Tue, 12 Jul 2005 usenet at s-boehringer.de wrote:
>>> I'm on R 2.1.0.
>>> In the "source" function there is a bug preventing the proper use of the
>>> chdir option (which simply doesn't work).
>>> The problem is that in the function the following line occurs:
>>> file <- file(file, "r", encoding = encoding)
>>> This overwrites the variable "file" and later causes the check
>>> if (chdir && is.character(file) && (path <- dirname(file)) !=
>>> to fail.
Brian D. Ripley, ripley at stats.ox.ac.uk
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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