Re: [R] neural networks with RSNNS

OK, I think I know what is the answer to this question - first I have to define a rsnns object factory, create a network (specify its architecture) and only THEN I can use train (this is what I have understood from the RSNNS manual) However, for the sake of not being stuck with this one, I used ML

Re: [R] neural networks with RSNNS

To provide more details: 1) the package I use is the RSNNS (as stated in the topic) 2) for input data to be split I fed in ts() object.. maybe this is a wrong move. Does anybody knows what is the type of object that can be fed into the train() function from the RSNNS package? The input dat

[R] neural networks with RSNNS

Hello All! I am training to train a NN with function train() after splitting data with the function splitForTrainingAndTest(). The split is ok (checked it), but when I get a try on training I get this message: Error in UseMethod("train") : no applicable method for 'train' applied to an object

[R] Neural networks

Dear list members. I am trying to make a sensitivity analysis (as derived by Zurada 1994, Engelbrecht 1995) of input parameters (gene expression data) when applying a neural network to classify different cancer subtypes. Since I am no expert in the field, (rather a newbie), I wonder if ther

Re: [R] Neural Networks

A reasonable place to start would be to look at the packages recommended in the Machine Learning section of CRAN Task Views: http://cran.r-project.org/web/views/MachineLearning.html . You could also try to search the archive for this list which often recommend the same package (e.g. http://to

[R] Neural Networks

Hi, I am starting to play around with neural networks and noticed that there are several packages on the CRAN website for neural networks (AMORE, grnnR, neural, neuralnet, maybe more if I missed them). Are any of these packages more well-suited for newbies to neural networks? Are there any relati

Re: [R] Neural Networks in R - Query

More specifically, it is nnet package. Best 2009/4/18 Tobias Verbeke : > Hi Lars, > >> I'd like to ask your guidance regarding the following two questions: (i) I >> just finished reading Chris Bishop's book "Neural Networks for Pattern >> Recognition". Although the book gave me good theoretical f

Re: [R] Neural Networks in R - Query

Hi Lars, I'd like to ask your guidance regarding the following two questions: (i) I just finished reading Chris Bishop's book "Neural Networks for Pattern Recognition". Although the book gave me good theoretical foundation about NN, I'm now looking for something more practical regarding architec

[R] Neural Networks in R - Query

Dear R users, I'd like to ask your guidance regarding the following two questions: (i) I just finished reading Chris Bishop's book "Neural Networks for Pattern Recognition". Although the book gave me good theoretical foundation about NN, I'm now looking for something more practical regarding archi

[R] neural networks

Hello all, I am trying to use the neuralnet function from the neural package to train neural networks. I am finishing my thesis over statistical learning in which I am comparring the MSE values for various algorithms with random data sets, so I do not have a specific application. I have two i