[R-sig-phylo] bonferroni corrections in Blomberg's K and Pagel's lambda

2016-12-11 Thread Chen, Ting-Wen
Dear all, I’m analysing some chemical compositions of species and considering them as “traits”, let’s say, 18 different compounds concentration in 37 species. I test phylogenetic signals in the percentage concentration of these compounds using Blomberg’s K and Pagel’s lambda using the function

Re: [R-sig-phylo] bonferroni corrections in Blomberg's K and Pagel's lambda

2016-12-11 Thread Theodore Garland
Dear Ting-Wen, This is a question about statistical philosophy in general, not specific to tests for phylogenetic signal. How best to correct for making multiple tests with related data is a huge and complicated topic. Another issue is whether your traits are correlated with each other, which wo