[R] Mantel test!

[Gavin Simpson]

On Fri, 2006-10-13 at 14:07 +0200, Hossein Moradi wrote:
> Dear Sir/ Madam,
>  
> I would like to ask you about mantel test in R. In ade4 package, if I
> want to use mantel.rtest, I get error massage "Object of class to "dist"
> expected". As I already have two dissimilarity matrices, shall I again
> compute distance measure using this function?
> If not, could you please let me know which function/command I can use to
> do?
> Thank you very much in advance and have a nice day!
>  
> Best regards,
> Hossein

If the dissimilarity matrices are full, square, symmetric matrices, then
you can use:

mantel.rtest(as.dist(your_mat1), as.dist(your_mat2))

See ?as.dist

HTH

G

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