You may be better off using a complete distance matrix and a model matrix describing plant sex, as explained in Legendre and Fortin 1989 and elsewhere.
Otherwise you will have to write your own Mantel code - all the examples I know of (vegan and ecodist, primarily) assume that diagonals are zero when doing the permutation testing of significance. You can easily get the Mantel r since that's equivalent to a correlation on distance matrices, but the permutation test is more complicated. There's also an article on ecodist in the latest issue of Journal of Statistical Software that covers mantel test variants. Sarah On 10/10/07, Birgit Lemcke <[EMAIL PROTECTED]> wrote: > This are distances but between male and female plants of the same > species. > > species A B C D E --> male > A > B > C > D > | > female > > > I would like to do a Manteltest. > > Birgit > > -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
