Re: [R-sig-eco] Error with raup distance, in metaMDS

2011-03-29 Thread Manuel Spínola
Thank you very much Brian. Best, Manuel On 28/03/2011 06:07 a.m., Brian Inouye wrote: There are other dissimilarity metrics that could also be used, each with different assumptions of course. Raup-Crick is a reasonable choice of distance metric, but I'm not sure if the current version of

Re: [R-sig-eco] Error with raup distance in metaMDS

2011-03-27 Thread Jari Oksanen
On 26/03/11 17:35 PM, Manuel Spínola mspinol...@gmail.com wrote: Dear list members, I got an error message working with Raup–Crick distance in metaMDS. flora.mds = metaMDS(indicadora, distance = raup, trace = FALSE, zerodist = ignore) Error in isoMDS(dist, k = k, trace = isotrace) :

[R-sig-eco] Error with raup distance in metaMDS

2011-03-26 Thread Manuel Spínola
Dear list members, I got an error message working with Raup–Crick distance in metaMDS. flora.mds = metaMDS(indicadora, distance = raup, trace = FALSE, zerodist = ignore) Error in isoMDS(dist, k = k, trace = isotrace) : zero or negative distance between objects 1 and 2 In addition: Warning