[R] Removing duplicates from a list

[Dimitris Rizopoulos]

have a look at ?unique(), e.g.,

unique(c(1,2,3,4,5,2,1))


I hope it helps.

Best,
Dimitris


glenn wrote:
> For a list say;
> 
> list1<-{1,2,3,4,5,2,1}
> 
> How do I remove the duplicates please?
> My real list is 20,000 obs long of dates with many duplicates
> 
> Regards
> 
> Glenn
> 
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> 
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-- 
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus Medical Center

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