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pairiddups
2012 Sep 27
3
Keep rows in a dataset if one value in a column is duplicated
...keep the pair observations, and was using the code below
until it gave me the error " $ operator is invalid for atomic vectors". I am
just beginning to learn R, so I apologize if the code is really rough.
Basically I want to keep all the rows in the data set for which the value of
"Pairiddups" is TRUE. How do I do it? And how do I get past the error?
Thank you so much,
Diana
PairID<-c(Health2$pairid)
duplicated(PairID, incomparables=TRUE, fromLast=TRUE)
PairIDdup=duplicated(PairID)
cbind(PairID, PairIDdup)
PairID[which(PairIDdup)]
PairIDDuplicates<-PairID%in%PairID[whic...