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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