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

[Prof Brian Ripley]

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