topology
Specification of the topology of the phylogenetic
tree. This is in the form of a vector of nonnegative integers, one
for each node in the tree. The i-th number is that of the ancestor
of the i-th node. The root node is distinguished by the number
times
A vector of nonnegative numbers, one per node in the
tree, specifying the time at which each node is located. The root node
should be assigned time 0.
regimes
A vector of codes, one for each node in the
tree, specifying the selective regimes hypothesized to have been
operative. Corresponding to each node, enter the code of the regime
hypothesized for the branch segment terminating in that node.
For the