OUCH: Ornstein-Uhlenbeck models for Comparative hypotHeses

OUCH: Ornstein-Uhlenbeck models
for phylogenetic Comparative hypotHeses

OUCH is a software package for phylogenetic comparative analysis. It is implemented in the R language (www.r-project.org) and can be downloaded from either the Comprehensive R Archive Network (cran.r-project.org, stable version) or R-forge (ouch.r-forge.r-project.org, development version).

The method is based on the ideas of Thomas F. Hansen (see T. F. Hansen, 1997. Stabilizing selection and the comparative analysis of adaptation. Evolution, 51:1341-1351). It is explained fully in

Butler, M.A. and A.A. King, 2004. Phylogenetic comparative analysis: a modeling approach for adaptive evolution. American Naturalist 164:683-695.

Reprints are available on request from the authors (write to <mabutler at utk dot edu> or <kingaa at umich dot edu>). The appendix for this paper, in which the mathematical underpinnings are explained, is provided here (in PDF).

Visit the authors' websites by going to http://tsuga.biology.lsa.umich.edu/king or http://www2.hawaii.edu/~mbutler.

OUCH: Ornstein-Uhlenbeck models for phylogenetic Comparative hypotHeses

OUCH: Ornstein-Uhlenbeck models
for phylogenetic Comparative hypotHeses