Re: [R-sig-eco] transformation of Bray-Curtis in Euclidean

2019-05-09 Thread Jari Oksanen
Yes, it is possible, and always has been when I have checked (which is not a proof). You can check this by seeing that it has no negative eigenvalues in principal coordinates analysis (apart from occasional negative almost-zero). Legendre & Legendre book discuss this. Cheers, Jari Oksanen >

[R-sig-eco] transformation of Bray-Curtis in Euclidean

2019-05-09 Thread Irene Adamo
Hi all, I have a very simple question: is it possible that the square-root of Bray-Curtis values is Euclidean? if not, is there a way to transform bray-curtis which is semi-quantitative in Euclidean? thanks a lot! [[alternative HTML version deleted]]