[R] How to suppress the printing of warnings (Windows)?

[Prof Brian Ripley]

On Mon, 11 Apr 2005, Jacho-Chavez,DT  (pgr) wrote:

> I'm running R v2.0.0 on Windows 2000. The command options(warn=-1) did 
> the trick. However, is there a way I may also stop these warnings from 
> printing on my screen while using R interactively. I am working with the 
> LOCFIT library.

Then sink() is not sinking warnings on that OS, so something else is 
wrong.

Yes, option(warn=-1) works in interactive sessions too.

> I'm also planning to run my simulations in my department's Unix machine 
> (R v1.9.0) in batch mode, would `option(warn=-1)' do the trick there as 
> well?

Yes.

>
> David
>
> -----Original Message-----
> From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk]
> Sent: 11 April 2005 13:48
> To: Jacho-Chavez,DT (pgr)
> Cc: r-help at stat.math.ethz.ch
> Subject: Re: [R] How to suppress the printing of warnings (Windows)?
>
>
> On Mon, 11 Apr 2005, Jacho-Chavez,DT  (pgr) wrote:
>
>> Dear all,
>>
>> I'm a newbie in R. I am running simulations using a fixed bandwidth in
>> nonparametric regressions, sending all the output to a file myoutput.txt
>> using sink("myoutput.txt"), & R is printing all warnings by the end of
>> the simulation on the file. I know the source of the problem & can take
>> care of it. However, finding a 50 MB file (where all the output is
>> printed, e.g. myoutput.txt) by the end of the simulation exercise is not
>> quite pleasant. How could I turn them off completely?, so they are not
>> printed in myoutput.txt file.
>
> options(warn=-1)
>
> However, warnings and errors are sent to stderr not stdout except on
> obselete versions (95/98/ME) of Windows, and so not redirected by that
> sink() call. For me (Windows XP)
>
>> sink("foo.out")
>> warning("test")
> Warning message:
> test
>
> as expected.  So is this an obsolete version of Windows or a very old
> version of R?
>
>
> -- 
> 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
>
>

-- 
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