Proposes a move in state space.
This operator changes a beast.tree.
Scales tip dates on a tree by randomly selecting one from (a subset of) taxa
scaleFactor, taxonset, tree, markclades, weight
|scaling factor: larger means more bold proposals|
|Optional input. Default: 1.0|
|limit scaling to a subset of taxa. By default all tips are scaled.|
|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|