If you are using the nnet package, the caret package has a variable
importance method based on Gevrey, M., Dimopoulos, I., & Lek, S. (2003).
Review and comparison of methods to study the contribution of variables in
artificial neural network models. Ecological Modelling, 160(3), 249-264. It
is based on the estimated weights.

Max


On Wed, Dec 4, 2013 at 6:41 AM, Giulia Di Lauro <giulia.dilauro@gmail.com>wrote:

> Hi everybody,
> I created a neural network for a regression analysis with package ANN, but
> now I need to know which is the significance of each predictor variable in
> explaining the dependent variable. I thought to analyze the weight, but I
> don't know how to do it.
>
> Thanks in advance,
> Giulia Di Lauro.
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 

Max

	[[alternative HTML version deleted]]

