Proposes a move in state space.
This operator changes a beast.tree.
Tree operator which randomly changes the height of a node, then reconstructs the tree from node heights.
taxonset, genetree, tree, markclades, weight
|taxon set describing species tree taxa and their gene trees|
|list of gene trees that constrain species tree movement|
|beast.tree on which this operation is performed|
|Mark all ancestors of nodes changed by the operator as changed, up to the MRCA of all nodes changed by the operator.|
|Optional input. Default: false|
|weight with which this operator is selected|