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

[Jacho-Chavez,DT (pgr)]

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.

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?

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)
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