[R-sig-eco] Dissimilarity for ordination of rank data

2017-05-31 Thread Tania Bird
Hi all, I have a data set of species data in different sites but instead of abundances, the presence has been converted to a rank score site-species matrix. The ranks are calculated based on max-scores that have been log transformed ln(x+1). 0 = absent and 5 = highest abundance for that species re

[R-sig-eco] Dissimilarity for ordination of rank data

2017-05-31 Thread Tania Bird
Hi all, I have a data set of species data in different sites but instead of abundances, the presence has been converted to a rank score site-species matrix. The ranks are calculated based on max-scores that have been log transformed ln(x+1). 0 = absent and 5 = highest abundance for that species re