It might be easier to implement in R if you employ the base functions that take arrays and operate on them as if they represented sets. See the help() for "union", "intersect", "setdiff", "setequal" and the operator "%in%".
-- Best regards, Ivan ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
