I'm using MetaMDS from the VEGAN package to run a non-metric multidimensional scaling analysis. My stress level for 3 dimensions is in the excellent range (i.e., stress<.05), however, the model never converges. I have attempted to set my "trymax" iteration level all the way up to 5000, but it still never converges.
I'm curious if this is a problem, I have not come across any sources that say my model is invalid if it doesn't converge, rather ensuring the stress level is low with low dimensionality.
is that assumption correct?