root_imbalance {treestats} | R Documentation |
Measures the distribution of tips over the two crown lineages, e.g. n1 / (n1 + n2), where n1 is the number of tips connected to crown lineage 1 and n2 is the number of tips connected to crown lineage 2. We always take n1 > n2, thus root imbalance is always in [0.5, 1].
root_imbalance(phy)
phy |
phylo object or ltable |
Root imbalance
Guyer, Craig, and Joseph B. Slowinski. "Adaptive radiation and the topology of large phylogenies." Evolution 47.1 (1993): 253-263.