**Challenge Problem 4: Stochastic mapping**

Use the following files containing (1) a set of trees from the Bayesian posterior distribution for eels & (2) phenotypic data for two characters for a subset of the species in (1).

Conduct stochastic mapping of feeding mode on this set of trees. Summarize the results using phytools summary methods, and plotting your findings.

*Written by Liam J. Revell. Last updated 28 July 2018.*