[R] Rpart

Dear users, I'm using rpart for classification trees, but my code isn't working when I try to use all the variables in my data frame. This data frame was created from a data frame with 1775 variables, but I choose only 13. arv13<-rpart(iv~.,data=gn,method="class",parms=list(split="information"))

[R] bipartite- is the quantitative linkage density measure weighted or not?

both measures are explained. Kind regards, Luisa -- Luisa Carvalheiro, PhD Southern African Biodiversity Institute, Kirstenbosch Research Center, Claremont & University of Pretoria Postal address - SAWC Pbag X3015 Hoedspruit 1380, South Africa telephone - +27 (0) 790250944 carvalhe...@

Re: [R] nonparametric mixed effect model

luisa On Wed, Feb 17, 2010 at 4:09 PM, Fons van der Plas wrote: > > Hi all, > > I'd like to compare species richness patterns of two groups with paired > observations with an extra continuous fixed effect as a covariate. Normally > I would use a standard general mixed eff

Re: [R] lmer - error asMethod(object) : matrix is not symmetric

response variable and the second (Dist_NV) seems to have a negative effect on SR_SUN. Does this information helps identifying the problem with my data/analysis? Thank you, Luisa On Tue, Feb 16, 2010 at 5:35 PM, Douglas Bates wrote: > This is similar to another question on the list today. > &g

[R] lmer - error asMethod(object) : matrix is not symmetric

wrong? Thank you, Luisa __ 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.

[R] lmer - error asMethod(object) : matrix is not symmetric

wrong? Thank you, Luisa -- Luisa Carvalheiro, PhD Southern African Biodiversity Institute, Kirstenbosch Research Center, Claremont & University of Pretoria Postal address - SAWC Pbag X3015 Hoedspruit 1380, South Africa telephone - +27 (0) 790250944 carvalhe...@sanbi.org lgcarvalhe...@gmail

[R] I don't know how to run a r-code written in emacs

Hi, I just installed R, I'm work in UBUNTU and I don't have idea about how to run a r-code written in emacs into the shell. Well I am in a shell, and obviously I can run simple commands over there, Must I compile the program? if yes, How must I do that? what is the extension? I really appreci