[R] extract values from a vector
Peter Dalgaard
p.dalgaard at biostat.ku.dk
Wed Nov 1 14:58:18 CET 2006
Antje <niederlein-rstat at yahoo.de> writes:
> Hello,
>
> I'm looking for a solution for the following problem:
> I have two vectors
>
> V1 <- c("apple","honey","milk","bread","butter")
> V2 <- c("bread","milk")
>
> now, I would like to know for each element in V1 if it's equal to one of
> the elements in V2
> I could do:
> which(V1 == V2[1] | V1 == V2[2])
>
> but what if I don't know the length of V2 and it's content???
%in%
> Thank you in advance!
>
> Antje
>
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--
O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B
c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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