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

From: kayj <>
Date: Wed, 04 Jun 2008 11:08:56 -0700 (PDT)

Thanks a lot for your help, I appreciate it.

David Winsemius wrote:
> 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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