Finds the Colless number for a tree.
Note that the package
apTreeshape has a function
colless to compute the Colless imbalance with additional options to normalise it based on the model;
we include this simple function here for convenience within this package, and for use on objects of class
a tree of class
option to normalise the result by dividing by the number of tip pairs. Defaults to
The Colless imbalance number of the tree.
Michael Boyd [email protected]
Michelle Kendall [email protected]
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