[R] Find the closest value in a list or matrix

[Daniel Malter]

x=c(1:100)
your.number=5.43
which(abs(x-your.number)==min(abs(x-your.number)))

Best,
Daniel 


-------------------------
cuncta stricte discussurus
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-----Ursprüngliche Nachricht-----
Von: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] Im
Auftrag von R_Learner
Gesendet: Wednesday, July 09, 2008 11:28 AM
An: r-help at r-project.org
Betreff: [R] Find the closest value in a list or matrix


I have a long list of numbers [3.4,5.4,3.67,....], and I basically want to
find the index of the number closest to this number that I have, let's say
5.43. How would I do this without writing a for loop (I have to do this many
times for several lists)? Is there a "lookup" function in R? 

Thanks!
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