[R] Cluster analysis using numeric and factor variables

2008-06-10 Thread Nagu
Hi, Are there any algorithms that handle numeric and factor variables together in a cluster analysis? Thank you, Nagu __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R

[R] Progress bar or execution plan for modeling process

2008-05-30 Thread Nagu
this already exists that can be just loaded in to R and use it or we have to tweak the original source of the given model to do this for me? Thank you, Nagu __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting

[R] How to use classwt parameter option in RandomForest

2008-05-20 Thread Nagu
arises from how to define these weights. If I say, classwt = c(3,6,9,1,2,3), how exactly the levels get weighted. If this is a 6X6 matrix, I can put a number in each cell to adjust the weights. How does classwt option work? Thank you in advance for any ideas. Nagu

[R] More digits in prediction using random forest object

2008-03-11 Thread Nagu
I need to get more digits in predicting a test sample with a random forests object. Format or options(digits=) do nothing. Any ideas? Thank you, Nagu __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

[R] error in random forest

2008-03-07 Thread Nagu
and the remaining are continuous variables). Any ideas on how to trace it? Thank you, Nagu __ 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

Re: [R] error in random forest

2008-03-07 Thread Nagu
. It is not particularly an R problem, but a confusion over data. To be useful, your training set need to cover the field for all levels of every factor. Think about it. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nagu Sent: Saturday, 8 March 2008 5:37

[R] Variable importance in Random Forests

2008-03-05 Thread Nagu
in the random forests algorithm? How do I achieve the same thing for a factor variable? Thank you, Nagu __ 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

Re: [R] Running randomForests on large datasets

2008-02-27 Thread Nagu
thought I'd share this observation with the others. Thank you Andy for your ideas. I'll keep tinkering with the parameters. Thank you, Nagu On Wed, Feb 27, 2008 at 5:24 AM, Liaw, Andy [EMAIL PROTECTED] wrote: There are a couple of things you may want to try, if you can load the data into R

Re: [R] To get more digits in precision of predict function of randomForests

2008-02-25 Thread Nagu
, datasets of size 50X650, and R just can't deal with it (pops up memory allocation problems). Are there any better ways to deal with large datasets in R, for example, Splus had something like bigData library. Thank you, Nagu On Mon, Feb 25, 2008 at 1:56 AM, Uwe Ligges [EMAIL PROTECTED] wrote

[R] Running randomForests on large datasets

2008-02-25 Thread Nagu
Hi, I am trying to run randomForests on a datasets of size 50X650 and R pops up memory allocation error. Are there any better ways to deal with large datasets in R, for example, Splus had something like bigData library. Thank you, Nagu __ R-help@r

[R] To get more digits in precision of predict function of randomForests

2008-02-24 Thread Nagu
this? Thank you, Nagu __ 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.