Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Is your phylogeny informative? Measuring the power of comparative
  methods   Phylogenetic comparative methods may fail to produce meaningful results when
either the underlying model is inappropriate or the data contain insufficient
information to inform the inference. The ability to measure the statistical
power of these methods has become crucial to ensure that data quantity keeps
pace with growing model complexity. Through simulations, we show that commonly
applied model choice methods based on information criteria can have remarkably
high error rates; this can be a problem because methods to estimate the
uncertainty or power are not widely known or applied. Furthermore, the power of
comparative methods can depend significantly on the structure of the data. We
describe a Monte Carlo based method which addresses both of these challenges,
and show how this approach both quantifies and substantially reduces errors
relative to information criteria. The method also produces meaningful
confidence intervals for model parameters. We illustrate how the power to
distinguish different models, such as varying levels of selection, varies both
with number of taxa and structure of the phylogeny. We provide an open-source
implementation in the pmc ("Phylogenetic Monte Carlo") package for the R
programming language. We hope such power analysis becomes a routine part of
model comparison in comparative methods.

31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int