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

2016-12-16 Thread Chen, Ting-Wen
o:r-sig-phylo-requ...@r-project.org> 於 2016年12月16日 19:00 寫道: Message: 5 Date: Fri, 16 Dec 2016 05:02:23 +0100 From: Carmelo Fruciano mailto:c.fruci...@unict.it>> To: r-sig-phylo@r-project.org<mailto:r-sig-phylo@r-project.org> Subject: Re: [R-sig-phylo] bonferroni corrections in Blombe

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

2016-12-15 Thread Carmelo Fruciano
1 Date: Tue, 13 Dec 2016 08:49:59 -0200 From: F?bio Machado To: "r-sig-phylo@r-project.org" Subject: Re: [R-sig-phylo] bonferroni corrections in Blomberg's K and Pagel's lambda Message-ID: Content-Type: text/plain; charset="UTF-8" Recently I came across a similar issue

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

2016-12-13 Thread Chen, Ting-Wen
--- Message: 1 Date: Tue, 13 Dec 2016 08:49:59 -0200 From: F?bio Machado To: "r-sig-phylo@r-project.org" Subject: Re: [R-sig-phylo] bonferroni corrections in Blomberg's K and Pagel's lambda Message-ID: Content-Type: text/plain; charset="

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

2016-12-13 Thread Fábio Machado
Recently I came across a similar issue, but I had a far greater number of repeated tests, 595 actually. If i used 10.000 permutations to access significance, I noticed that I could never reject the null hypothesis. That is because for 10.000 permutations, the minimum p value is 1e-04 and the bo

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