R help - Jun 2005 - suppress output of neural network for use in Sweave

Hi!

How can I suppress the output of the function nnet in the library(nnet) ?

I get the following output :

 > nn = nnet(x, y, size=5, maxit=40, linout=TRUE);
# weights:  16
initial  value 33.511291
iter  10 value 5.792440
iter  20 value 5.279584
iter  30 value 4.800890
iter  40 value 4.593410
final  value 4.593410
stopped after 40 iterations

Since I train many networks and use Sweave I don??t want the output in 
the latex code. So how can I suppress this output?


thx
jeff

Thorstensen Nicolas wrote:
> Hi!
> 
> How can I suppress the output of the function nnet in the library(nnet) ?
  ?nnet suggests adding trace=FALSE to the arguments.

  In other cases if functions dont have this sort of option then on a 
Unix box you can wrap your function calls in sink("/dev/null") [do 
stuff] sink() to send output to a black hole. Not sure what the Windows 
equivalent is.

Baz

could you set trace = FALSE in the nnet().

On 6/15/05, Thorstensen Nicolas <thorstensen at gmx.net>
wrote:
> Hi!
> 
> How can I suppress the output of the function nnet in the library(nnet) ?
> 
> I get the following output :
> 
>  > nn = nnet(x, y, size=5, maxit=40, linout=TRUE);
> # weights:  16
> initial  value 33.511291
> iter  10 value 5.792440
> iter  20 value 5.279584
> iter  30 value 4.800890
> iter  40 value 4.593410
> final  value 4.593410
> stopped after 40 iterations
> 
> Since I train many networks and use Sweave I don??t want the output in
> the latex code. So how can I suppress this output?
> 
> 
> thx
> jeff
> 
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-- 
WenSui Liu, MS MA
Senior Decision Support Analyst
Division of Health Policy and Clinical Effectiveness
Cincinnati Children Hospital Medical Center

On 6/15/05, Barry Rowlingson <B.Rowlingson at lancaster.ac.uk>
wrote:
> Thorstensen Nicolas wrote:
> > Hi!
> >
> > How can I suppress the output of the function nnet in the
library(nnet) ?
> 
>  ?nnet suggests adding trace=FALSE to the arguments.
> 
>  In other cases if functions dont have this sort of option then on a
> Unix box you can wrap your function calls in sink("/dev/null")
[do
> stuff] sink() to send output to a black hole. Not sure what the Windows
> equivalent is.

A general way OS independent way to turn off output is via 
capture.output:

	invisible(capture.output(...whatever...))