optimiDefaultConstraint {tigre} | R Documentation

## Returns function for parameter constraint.

### Description

returns the current default function for constraining a parameter.

### Usage

      optimiDefaultConstraint(constraint)

### Arguments

`constraint` | the type of constraint you want to place on the parameter, options include 'positive' (gives an 'exp' constraint) and 'zeroone' (gives a 'sigmoid' constraint).

### Value

`val` | a list with two components: 'func' for the name of function used to apply the constraint, and 'hasArgs' for a boolean flag if the function requires additional arguments.

### See Also

`expTransform, sigmoidTransform`.

### Examples

      optimiDefaultConstraint('positive')
      optimiDefaultConstraint('bounded')

[Package tigre version 1.46.0 Index]