I am using the order function and the result seems to be incorrect: > a<-c(20,30,15,40) > order(a) [1] 3 1 2 4 Any suggestions? Thanks, Laura -- View this message in context: http://www.nabble.com/Incorrect-order-tp20224993p20224993.html Sent from the R help mailing list archive at Nabble.com.