Dear fellow list users, I would like to assess the magnitude of phylogenetic signal in two sets of continuous data. Set 1 contains numerous zeros and is therefore non-normal. Set 2 contains very little variation and is non-normal due to underdispersion. Given that both data sets are largely immune to transformations to normality, I am wondering whether the lambda estimates for untransformed data derived from phylosig and fitContinuous will be meaningful? If not, can you recommend transformations or other methods of phylogenetic-signal assessment that would be preferable?
Thank you very much, Nina Dr. Nina Hobbhahn Post-doctoral fellow Lab of Prof. S. D. Johnson School of Life Sciences University of KwaZulu-Natal Private Bag X01 Scottsville, Pietermaritzburg, 3201 South Africa [[alternative HTML version deleted]] _______________________________________________ R-sig-phylo mailing list R-sig-phylo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-phylo