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

[Henrique Dallazuanna]

Try this:

which.min(abs(x - 5.43))

where x is your vector of numbers.



On Wed, Jul 9, 2008 at 12:28 PM, R_Learner <sschiang8 at gmail.com> wrote:
>
> 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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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O