Performance of phylogenetic tree estimation by a range of methods under different simulation conditions. The numbers above each plot describe the average probability of a method recovering the tree used to simulate the data. The square plots show the distribution of this probability (see text for more details), with probabilities covered by the following ranges: , 1.0; , 0.8–0.99; , 0.6–0.79; , 0.4–0.59; , 0.2–0.39; , 0–0.19.