1. C

    convergence in nMDS

    Hi, I am running and nMDS in R on abudance data and my nmds does not reach convergence I have tried to increase trymax to 1000, use k=3, use previous best and use noshare but none worked. Is there anything else I could or is there another analysis that I can use instead?
  2. P

    comparing the DEGREE of difference between data sets

    Hi all, I'm wondering if there is a way to assess the degree of difference between data sets. For instance, say I have 4 groups of proportions (or 4 data sets that these proportions were generated from), A, B, C, and D. Is there a way to determine which group out of A, B, and C is most alike...