Is the swiss data set in R the same as S dataset swiss.x . I was trying out some clustering by doing the following that I got from Venables and Ripley's book. h<-hclus(dist(swiss.x), method= "connected") plclust(h) cutree(h,3) plclust(clorder(h,cutree(h,3))) I tried swiss instead of swiss.x, it doesnot seem happy. Thanks ../Murli