neural network
Let me guess that you are using package nnet from the VR bundle? If so, you need to read the manual (which is the book the software supplements). Scaling your values and using suitable weight decay are normally necessary. As for what the value is, that is described on the help page.
On Thu, 16 May 2002, Alex Boulet wrote:
I just discovered the R language and was trying to implement a neural network. I got it to work but it does not seem that I can get it to converge to a good enough optimization. The best I obtained for the final value was around 11 and when I use the predic function, my results do not look bery good. Anyway, if anybody has any suggestions, it would be greatly appreciated. Also, I would like to know what the final value represents and how it is calculated. Thanks, Alex. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
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 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._