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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Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus Medical Center
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