Bioinformatics Advance Access originally published online on February 21, 2008
Bioinformatics 2008 24(7):1018-1020; doi:10.1093/bioinformatics/btn065
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PCCA: a program for phylogenetic canonical correlation analysis
Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
*To whom correspondence should be addressed.
| Abstract |
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Summary: PCCA (phylogenetic canonical correlation analysis) is a new program for canonical correlation analysis of multivariate, continuously valued data from biological species. Canonical correlation analysis is a technique in which derived variables are obtained from two sets of original variables whereby the correlations between corresponding derived variables are maximized. It is a very useful multivariate statistical method for the calculation and analysis of correlations between character sets. The program controls for species non-independence due to phylogenetic history and computes canonical coefficients, correlations and scores; and conducts hypothesis tests on the canonical correlations. It can also compute a multivariate version of Pagel's
, which can then be used in the phylogenetic transformation.
Availability: PCCA is distributed as DOS/Windows, Mac OS X and Linux/Unix executables with a detailed program manual and is freely available on the World Wide Web at:
http://anolis.oeb.harvard.edu/~liam/programs/.
Contact: lrevell{at}fas.harvard.edu
Associate Editor: Keith Crandall
Received on November 14, 2007; revised on January 7, 2008; accepted on February 15, 2008