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I have tow vectors one is the subset of another x is a subset of X Both are vectors with n elements X[X %in% x] would give me x again rite because it is a subset but i want all those are not in x from X. X[which(X != x)] should this do that Thanks Ramya -- View this message in context: http://n4.nabble.com/vector-help-tp960277p960277.html Sent from the R help mailing list archive at