Any idea why clusters five and six fall off the scale in the following? library(cluster) library(maptree) data(flower) dfl2<-daisy(flower,type=list(asymm=c(1,3),ordratio=7)) hdfl2<-hclust(dfl2) prune.dfl2<-prune.clust(hdfl2,k=6) plot(prune.dfl2) Of course the following will display all six clusters, but without a scale: draw.tree(prune.dfl2) Best wishes, Mikkel Mikkel Grum International Plant Genetic Resources Institute (IPGRI) Sub-Saharan Africa Group *** PO Box 30677 00100 Nairobi, Kenya Tel: +254 20 524505(direct)/524500(IPGRI) Fax: +254 20 524501(IPGRI)/524001(ICRAF) m.grum at cgiar.org www.ipgri.org