[R] knn using custom distance metric

Liaw, Andy andy_liaw at merck.com
Sat Feb 7 03:55:55 CET 2004

What I have done is made a copy of the R and C functions, renamed them, and
modified the C code to compute the distance desired.  Very easy to do if you
know some C.


> From: Xiao-Jun Ma
> Hi,
> There are two packages providing knn classification: class 
> and knnTree.
> However, it seems both uses Eucleadian distances only. How 
> can I uses a
> custom distance function with either package?
> Thanks,
> Xiao-Jun

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