Message-ID: <649904.72480.qm@web15108.mail.cnb.yahoo.com>
Date: 2010-01-20T15:28:13Z
From: Bingzhang Chen
Subject: Problem in NMDS
Hi,
I am stuck in one problem when doing nonmetric multidimensional scaling. I use the function 'metaMDS' in the package 'vegan' to work on the presence/absence community data. The problem is when two samples are identical (dissimilarity = 0), metaMDS cannot work with zero dissimilarity.
I don't want to delete the duplicates as they are true samples from different locations.
Thanks in advance.
Bingzhang Chen
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