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Table 2 Example of coding a gene tree as a matrix representation

From: Accuracy of phylogeny reconstruction methods combining overlapping gene data sets

Tree Baum/Ragan coding Purvis coding
A 11 B 00 C 10 D 11 R 00 A 11 B 0? C 10 D 11
  1. The Baum/Ragan coding codes every internal split independently. We use the unrooted version of the BR coding, i.e., without coding the root explicitly. The Purvis coding codes only sister groups of rooted trees.