On 07/11/2013, at 12:05 PM, Duarte Viana wrote: > Hello all, > > I am doing a CAP (or dbRDA) in vegan, using the function "capscale", where > the response is a dissimilarity matrix (Sorensen's distance index) and the > explanatory matrix consists of 19 variables. The code runs apparently fine, > but the species scores appear as NA (site scores are properly given). > > Does anyone knows what might be the problem? > Duarte,
Did you supply species data? Species scores cannot be estimated without information on species. If your response is a dissimilarity, there is no information about the original species. You can supply the original community data (which has the information on species) as argument 'comm' in capscale(). Cheers, Jari Oksanen _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology