[adegenet-forum] Isolation by distance (Mantel test)

[Isabelle Gemmer]

Hello,

I installed coordinates for the Mantel test.
 > data1$other$xy<-dataxy
 > Dgeo <- dist(data1$other$xy)
 > ibd <- mantel.randtest(Dgen,Dgeo)
It worked well. But in reality, the examined organisms can not swim 
through a lake, they can only migrate along a shoreline. Thus, I 
measured the distances and provide an own matrix of geographic distances.

My question is: Can I also install own measured geographic distances 
instead of coordinates?

Regards,
Isabelle