BEAST v2.7.8 Documentation: starbeast3.operators.BactrianTreeScaleOperator

Proposes a move in state space.

Scale operator that finds scale factor according to a Bactrian distribution (Yang & Rodriguez, 2013), which is a mixture of two Gaussians: p(x) = 1/2*N(x;-m,1-m^2) + 1/2*N(x;+m,1-m^2) and more efficient than RealRandomWalkOperator

Inputs:

scaleFactor, rootOnly, optimise, gene, kernel, kernelDistribution, weight

 

scaleFactor
type: java.lang.Double
scaling factor: larger means more bold proposals
Optional input. Default: 1.0

 

rootOnly
type: java.lang.Boolean
scale root of a tree only, ignored if tree is not specified (default false)
Optional input. Default: false

 

optimise
type: java.lang.Boolean
flag to indicate that the scale factor is automatically changed in order to achieve a good acceptance rate (default true)
Optional input. Default: true

 

gene
type: starbeast3.evolution.speciation.GeneTreeForSpeciesTreeDistribution***
list of gene trees that constrain species tree movement
Optional input

 

kernel
type: starbeast3.genekernel.GTKPrior
the kernel of gene trees
Optional input

 

kernelDistribution
type: beast.base.inference.operator.kernel.KernelDistribution
provides sample distribution for proposals
Optional input

 

weight
type: java.lang.Double
weight with which this operator is selected
Required input