jaatha (version 2.7.0)

dm.addParameter: Create a parameter that can be used for one or more features

Description

The function creates a new model parameter. It can either have a fixed value or you can enter a range of possible values if you want to estimate it.

Usage

dm.addParameter(dm, par.name, lower.boundary, upper.boundary, fixed.value)

Arguments

dm

The demographic model to which the parameter will be added

par.name

The name of the parameter. You can use this name later to access the parameter from a model feature

lower.boundary

The lower boundary of the range within which the parameter value will be estimated. Don't specify 'fixed.value' if you want to do so.

upper.boundary

Like 'lower.boundary', but the upper end of the parameter range.

fixed.value

If this argument is given, than rather than being estimated a fixed value will be used.

Value

• The original model extended with the new parameter.

Examples

dm <- dm.createThetaTauModel(c(15,23), 100)
dm <- dm.addParameter(dm, "mig", 0.1, 5)
dm <- dm.addMigration(dm, par.new=FALSE, parameter="mig", pop.from=1, pop.to=2)
dm <- dm.addMigration(dm, par.new=FALSE, parameter="2*mig", pop.from=2, pop.to=1)