The how and why of branch support and partitioned branch support, with a new index to assess partition incongruence
- 22 August 2006
- journal article
- Published by Wiley in Cladistics
- Vol. 22 (4) , 378-386
- https://doi.org/10.1111/j.1096-0031.2006.00113.x
Abstract
An introduction and step-by-step guide to the calculation of branch support (BS) and partitioned branch support (PBS) is provided, along with a new summary measure of conflict among data partitions, the partition congruence index (PCI). Patterns of PCI vs. BS are compared for two data matrices from butterflies. PCI is a close mirror of BS unless BY is relatively low and there is a lot of conflict among data partitions, in which case PCI becomes negative. Some theoretical concerns relating to PBS are noted.Keywords
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