Re: [R] merging two data sets with no column header

From: David Winsemius <dwinsemius_at_comcast.net>
Date: Tue, 03 Jun 2008 22:44:23 -0700 (PDT)

Thanks for your reply.

In your last step If I create a duplicate ( two similar records ) # create a duplicate
vv[8,1] <- 7
vv[8,2]<-'g'

and then I merge vv with vv2 ,both duplicates are merged. Is there a way to tell R to merge only the unique records.


I don't think merge will do what you are asking. Suspect you would need to do it either before the merge or after. I tried using the Extract operator on a merged dataset, but only succeeded in omitting the duplicated items, not both instances.

--

David Winsemius

--

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