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. 2013 Feb 15;30(5):1188–1195. doi: 10.1093/molbev/mst024

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© The Author 2013. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 4. — Schematic view of the tree space sampled by the IQPNNI algorithm. The solid curve reflects the log-likelihood surface on the tree space. The structure of tree space is defined by the NNI operations where each -taxon tree has exactly neighboring trees.

Inline graphic — Schematic view of the tree space sampled by the IQPNNI algorithm. The solid curve reflects the log-likelihood surface on the tree space. The structure of tree space is defined by the NNI operations where each -taxon tree has exactly neighboring trees.