[R] nnet problem

[Pedro Rodrigues]

I believe you want to fit a nnet model to predict numeric data.

you can try as follows:

xx <- "Matrix of size INPUTS*EXAMPLESTRAIN"
yy <- "Vector of size EXAMPLESTRAIN"
x1 <- "Matrix of size INPUTS*EXAMPLESTEST"

# fit your model like this
nnetmodel <- nnet(x=xx, y=yy, ....)
# or like this only if dealing with a data.frame
nnetmodel <- nnet(outname ~ in1name + ... inNname, ....)

# here numdata will become a vector of size EXAMPLESTEST.
numdata <- predict(nnetmodel, x1) 

Best Regards

Pedro

On Fri, 2004-02-06 at 14:36,
optimisation1.stagiaire at lagardere-active.com wrote:
> 
> 
> 
> Hello everybody,
> 
> I want to use the nnet library and my problem is that the algorithm seems
> to accept only class as target when the neural is fiiting. So the output
> when I use predict.nnet is also a class. Is it possible to have numeric
> variable as target ? If yes, what is the syntax ?
> 
> Thank you.
> 
> 
> Cordialement,
> 
> Régis CHARIGNON
> 
> 
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