The expected value under the Yule model of the squared path-difference distance
Populations and Evolution
2012-03-13 v1 Probability
Quantitative Methods
Abstract
The path-difference metric is one of the oldest and most popular distances for the comparison of phylogenetic trees, but its statistical properties are still quite unknown. In this paper we compute the expected value under the Yule model of evolution of its square on the space of fully resolved rooted phylogenetic trees with n leaves. This complements previous work by Steel-Penny and Mir-Rossell\'o, who computed this mean value for fully resolved unrooted and rooted phylogenetic trees, respectively, under the uniform distribution.
Keywords
Cite
@article{arxiv.1203.2503,
title = {The expected value under the Yule model of the squared path-difference distance},
author = {Gabriel Cardona and Arnau Mir and Francesc Rossello},
journal= {arXiv preprint arXiv:1203.2503},
year = {2012}
}
Comments
10 pages, extended version of a paper submitted to Applied Mathematics Letter