pairwise comparison of rank dissimilarities for factor levels - pairwise ANOSIM
Hello, I have a question and would be grateful for any help: Is there a possibility (in the sense that I do not have to write my own function) to compute pairwise comparisons for factor levels concerning their rank dissimilarities? I have a distance matrix and want to assess if there are significant differences between the ranked distances of different ecological groups (pollution categories). I found the anosim, adonis and mrpp function in the vegan package for testing if there is a general difference between and among group rank similarities but I did not figure out which group levels are significantly different from each other in multiple comparison. In Primer there is something like pariwise ANOSIM to do this. Thanks in advance! Ralf ------------------------------------------------------------ Dr. Ralf Bernhard Sch?fer Biotechnology and Environmental Biology School of Applied Sciences RMIT University PO Box 71 3083 Bundoora, VIC Australia Mail: Ralf.Schaefer at rmit.edu.au Phone: ++61 (0)3 99257105 Web: http://www.rmit.edu.au/staff/ralf-schaefer