Hi list, recently, for didactic reasons, I had the need to change a cluster topology (just the order of my groups, defined in an height of choice), not the results, obviously. Well I’m looking at hclust or agnes (cluster package) objects for something that defines the line breakings of the graphics, so I could try something to change this plot ordering. But, I’m unable to figure that out. Is there a way to do so? Here is an example code: Spp<-matrix(rnorm(1:750,mean=10,sd=2),ncol=15,nrow=50,list(c(paste('Spp',1:5 0,sep='')),c(paste('C',1:15,sep=''))),byrow=T) Ward<-hclust(dist(Spp),method='ward') plot(Ward) Let’s suppose I want to change the order of the groups formed at the height of 20 (Obviously, only where it’s possible, without altering the greater groups composition). Is it possible? ------------------------------------------------------------- MSc. <mailto:r.aluizio@gmail.com> Rodrigo Aluizio Centro de Estudos do Mar/UFPR Laboratório de Micropaleontologia Avenida Beira Mar s/n - CEP 83255-000 Pontal do Paraná - PR - Brasil [[alternative HTML version deleted]]