Message-ID: <3AD3735F.F5BD9D5B@virginia.edu>
Date: 2001-04-10T20:55:59Z
From: Frank E Harrell Jr
Subject: Similarity matrix
I frequently use hclust on a similarity matrix. In R only a
distance matrix is allowed. Is there a simple reliable
transformation of a similarity matrix that will result
in a distance matrix making hclust work the same as
S-Plus with a similarity matrix? Venables & Ripley 3rd
edition implies that a simple reversal of values
will suffice. Thanks -Frank
--
Frank E Harrell Jr Prof. of Biostatistics & Statistics
Div. of Biostatistics & Epidem. Dept. of Health Evaluation Sciences
U. Virginia School of Medicine http://hesweb1.med.virginia.edu/biostat
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