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coutresy
2008 Jul 05
2
p-value for Nonmetric Multidimentional Scaling?
Dear R-helpers,
I am running metaMDS in the vegan package, which uses isoMDS in MASS, to perform Nonmetric Multidimentional Scaling (NMDS).
I have seen some authors report a p-value for the NMDS ordination based on randomization of the dataset. As I understand it this is meant to compare the stress in your dataset to multiple runs of randomized data.
I do not see a way to perform such a test in