hi there I have a dataframe abc 123 234 abc 234 456 def 567 234 elm 123 456 klm 234 678 klm 465 678 I want the unique of first colum along with the values in colum 2 and 3.I By default it will select the first element for the unique so my out put should be abc 123 234 def 567 234 elm 123 456 klm 234 678 I tried something like cbind(unique(DF1[,1],DF1[unique(DF1[,1],c(2,3)] I didnt work kindly give me some suggestions Regards Ramya -- View this message in context: http://www.nabble.com/Data-frame-help-tp20668919p20668919.html Sent from the R help mailing list archive at Nabble.com.