[R] Problem in NMDS

[Bingzhang Chen]

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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