Challenge Problem 5: Detecting the evolutionary correlation between binary traits
Download the following two files:
Use the phytools function
fitPagel to fit Pagel's model for correlated binary-trait
evolution on the tree. What do you find?
Visualize the character data on the tree. What does this tell you about the basis for your result? Do you feel confident that x & y have evolved in an evolutionarily correlated manner?
Written by Liam J. Revell. Last updated 28 July 2018.