Dear List, My dataset is as below: I am using library(cluster) hierarchical clustering on these data. If i try to plot these i couldn't see the partitions clearly, > dd<-hclust(dist(DataSetS01022Full), "ave") > Warning message: >NAs introduced by coercion >(dn<-as.dendrogram(dd)) >plot(dn) please find the link on the plot : http://roughjade.blogspot.com i couldn't figure it out whether *design *of the dataset. Could anyone give me some suggesstions. AAP326 29 AAW315 37 AAW321 24 AAW322 7 AAW331 22 ACE381 22 ACP112 21 ACP212 24 ACP251 26 ACP321 31 ACW102 39 ACW112 21 ACW121 17 ACW131 7 ACW212 24 ACW241 37 ACW251 26 ACW261 33 ACW311 7 ACW321 31 ACW342 39 ACW371 29 AFP365 24 AFU366 20 AFW360 2 AFW362 40 AGU610 8 AGW609 16 AGW615 1 AGW617 31 AGW619 6 AGW705 32 AGW707 2 AGW708 13 AKP202 16 AKW101 16 AKW102 40 AKW103 16 AKW104 40 AKW202 16 AKW301 33 AKW302 9 AMP342 20 AMP343 2 AMP344 22 AMP345 36 AMP347 40 AMU643 3 AMW340 25 AMW343 2 AMW344 22 AOP351 40 AOP352 32 AOP353 2 AOP354 2 AOP356 13 AOU655 21 AOW351 40 AOW353 2 Thanks in Advance, -- Lecturer J. Joshua Thomas KDU College Penang Campus Research Student, University Sains Malaysia [[alternative HTML version deleted]]