[R] Convert a List of Distances to a Distance Matrix

From: Charles Willis <willis.charlie_at_gmail.com>
Date: Wed, 12 Mar 2008 20:45:39 -0400


Is there an easy function for switching list to matrix. My list is of genetic distances between species pairs:

A A 0

A B .5
A C .25
B C .5

and I want a distance matrix such as:

   A B C
A 0 .5 .25
B .5 0 .5
C .25 .5 0

for use in a mantel test.

Thank you for the help!



Charles G. Willis Department of Organismic and Evolutionary Biology 22 Divinity Ave Cambridge MA 02139 HP (857) 488-2506 WP (617) 496-3890 cgwillis_at_oeb.harvard.edu http://www.people.fas.harvard.edu/%7Ecgwillis/
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Received on Thu 13 Mar 2008 - 00:50:07 GMT

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