[R] Transformation of dissimilarity or distance matrix

Thomas Lumley tlumley at u.washington.edu
Wed May 30 17:25:16 CEST 2001


On Wed, 30 May 2001 Jan_Svatos at eurotel.cz wrote:

>
> Thanks to Prof. Brian Ripley
> for a quick and useful answer.
> I was wrong, as I thought about some measure of "similarity" instead of
> dissimilarity.
> Of course, with dissimilarities and distances makes my question no sense.
> The call of hclust() , as well as dist() with 3000 x 3 matrix succeded at

If you have coerced the small values to exact zeroes I would have thought
that pasting each row (suitably rounded) into a string and using order()
on the strings would give a suitable permutation.

	-thomas

Thomas Lumley			Asst. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle

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