[R] [interfacing C][dist]

[Roger Bivand]

On Mon, 20 Jun 2005, Guillaume Allain wrote:

Either download the source code and unpack the file you need, or use the 
online anonymous SVN facility:

https://svn.r-project.org/R/trunk/src/library/stats/src/distance.c


> Hi,
> 
> Is it possible to access to the C source code of the "dist" function? I 
> mean when u do read the dist code, it points almost directly to a C 
> function  :
> 
> d <- .C("R_distance", x = as.double(x), nr = N, nc = ncol(x),
>          d = double(N * (N - 1)/2), diag = as.integer(FALSE),
>          method = as.integer(method), p = as.double(p), DUP = FALSE,
>          NAOK = TRUE, PACKAGE = "stats")$d
> 
> I would like to access to the R_distance.c in order to add a home made 
> distance for classification distance.
> 
> Thanks for your help, Guillaume
> 
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-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no