Thanks, But this is not solving my problem, let me further explain by following the example in the help page for dendrogram:
require(graphics); require(utils) hc <- hclust(dist(USArrests), "ave") dend1 <- as.dendrogram(hc) dend2 <- cut(dend1, h=70) plot(dend2$upper,center=T) What I want to know are the original elements in each of the final branches of dend2$upper (the ones labeled "Branch 1", "Branch 2" etc) (or the branch for each of the original elements). May be I could with dend2$lower, but can't find the way. Agus Yaomin Xu escribió: > Sorry, forget to put your email address. > > ---------- Forwarded message ---------- > From: Yaomin Xu <[EMAIL PROTECTED]> > Date: Oct 28, 2007 5:14 PM > Subject: Re: [R] cut.dendrogram and cutree > To: r-help@r-project.org > > > Agus, > > we use cut.tree when it makes sense to use a specific h as a global > criterion to split the tree. > > In your case, you might want to access the tree using '[['. Examples > below borrow the samples you provided in your code: > > 1) There are two branches in your dend1. To get the left branch, you can do > >> dend1.1 <- dend1[[1]] >> labels(dend1.1) > > where labels function gives you all the states you have under that branch. > > 2) There are two big sub-branches on the right branch of brand1, to > access the right one of those two sub-branches, you can do, > > dend1.2.2 <- dend1[[c(2,2)]] # or dend1.2.2<- dend1[[2]][[2]] > lables(dend1.2.2) ## will list you all the members. > > So the branches of a dendrogram object can be accessed in a binary > tree fashion, use '1' for the tree on the left and '2' for the tree on > the right. > > hope the above helps. > > yaomin > > ------ > Yaomin Xu > Statstical Computing and Bioinformatics > The Cleveland Clinic Foundation > > -- Dr. Agustin Lobo Institut de Ciencies de la Terra "Jaume Almera" (CSIC) LLuis Sole Sabaris s/n 08028 Barcelona Spain Tel. 34 934095410 Fax. 34 934110012 email: [EMAIL PROTECTED] http://www.ija.csic.es/gt/obster ______________________________________________ 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.
