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Keep rows in a dataset if one value in a column is duplicated
2012 Sep 27
3
Keep rows in a dataset if one value in a column is duplicated
...icated(PairID, incomparables=TRUE, fromLast=TRUE) PairIDdup=duplicated(PairID) cbind(PairID, PairIDdup) PairID[which(PairIDdup)] PairIDDuplicates<-PairID%in%PairID[which(PairIDdup)] PairIDs<-cbind(PairID, PairIDDuplicates) colnames(PairIDs)<-c("Pairid","Pairiddups") Health2PairsOnly<-PairIDs[ which(PairIDs$Pairiddups=='TRUE'), ] -- View this message in context: http://r.789695.n4.nabble.com/Keep-rows-in-a-dataset-if-one-value-in-a-column-is-duplicated-tp4644420.html Sent from the R help mailing list archive at Nabble.com.