Fig. 8
From: Improving the performance of Bayesian phylogenetic inference under relaxed clock models
Illustration of operations on root. a An example of a 4-taxa unrooted tree and two possible rooted trees for the operator to sample, during which the unrooted tree can not be changed. Based on the original tree in b, Simple Distance proposes a node time in g′ and two rates in r′ and keeps dL,dR constant in c. Small Pulley proposes two rates in r′ and D=dL+dR remains constant in d