[R] Efficient way to substract all entries in two vectors from eachother

[Bert Gunter]

Vectors of what? How is "closest" defined? See e.g. ?dist


Bert Gunter
Genentch Nonclinical Statistics


-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of Johannes Graumann
Sent: Monday, January 07, 2008 11:19 AM
To: r-help at stat.math.ethz.ch
Subject: [R] Efficient way to substract all entries in two vectors from
eachother

Hi all,

I'm to inexperienced to come up with the matrix solution elusively appearing
on the horizon for the following problem and would appreciate if you could
give me a nudge ...
I have two vectors a, and b and need to find the closest match for each
value of a in b.
How to do that efficiently?

Thanks, Joh

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