[R] Replacing multiple elements in a vector !

[Henrique Dallazuanna]

Try this:

merge(rs.id, snp.id, by.x = 1, by.y = 2)$V2

or:

with(snp.id, V2[match(rs.id, V3)])

On Thu, Oct 22, 2009 at 12:12 PM, Praveen Surendran
<praveen.surendran at ucd.ie> wrote:
> Hi,
>
>
>
> I have a vector with elements
>
>
>
> rs.id=c('rs100','rs101','rs102','rs103')
>
>
>
> And a dataframe 'snp.id'
>
>
>
> 1              SNP_100              rs100
>
> 2              SNP_101              rs101
>
> 3              SNP_102              rs102
>
> 4              SNP_103              rs103
>
>
>
> Task is to replace rs.id vector with corresponding 'SNP_' ids  in snp.id.
>
>
>
> Thanks in advance.
>
>
>
> Praveen Surendran
>
> 2G, Complex and Adaptive Systems Laboratory (UCD CASL)
>
> School of Medicine and Medical Sciences
>
> University College Dublin
>
> Belfield, Dublin 4
>
> Ireland.
>
>
>        [[alternative HTML version deleted]]
>
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>



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