Hi Miguel, Sorry for the slow reply - it is p=0.02. The code at the moment gives a one tailed p-value for values in the range 0-1, so 0.98 means that 98% of the brownian threshold model simulations had an observed D greater than -0.71.
Cheers, David On 17 May 2013, at 16:56, miguel.ve...@uv.es wrote: > Dear list: > > I am using phylo.d in caper package and the Estimated D is lower than > 0 (D=-0.71), suggesting a phylogenetic signal greater than Brownian > expectation. However, the Probability of E(D) resulting from Brownian > phylogenetic structure is p=0.98. Should I interpret this p-value as > non-significant? or should I interpret it as a significant > p=1-0.98=0.02? I am asking this question because I have never been > able to detect a significant phylosignal higher than BM even with > simulated data. > > > Estimated D : -0.7107697 > > Probability of E(D) resulting from no (random) phylogenetic structure : 0 > > Probability of E(D) resulting from Brownian phylogenetic structure > : 0.98 > > Thanks > > Miguel Verdu > -- > ******************************************************************** > Centro de Investigaciones sobre Desertificacion > (CSIC-UV-GV) > Carretera Moncada - Náquera, Km. 4,5 > Apartado Oficial > 46113 Moncada (Valencia) > Spain > Tel +34 96 3424204 > Fax +34 96 3424160 > www.uv.es/verducam > > _______________________________________________ > R-sig-phylo mailing list - R-sig-phylo@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-phylo > Searchable archive at http://www.mail-archive.com/r-sig-phylo@r-project.org/ _______________________________________________ R-sig-phylo mailing list - R-sig-phylo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-phylo Searchable archive at http://www.mail-archive.com/r-sig-phylo@r-project.org/
