Perhaps something about like this:

 merge(vv[-c(which(duplicated(vv))-1, which(duplicated(vv))),], vv2, by=1)

On Wed, Jun 4, 2008 at 3:08 PM, kayj <kjaja27@yahoo.com> wrote:

>
>
>
> 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
> >
> >
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/merging-two-data-sets-with-no-column-header-tp17613296p17652963.html
> Sent from the R help mailing list archive at Nabble.com.
>
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>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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