dict_scalors_proxy {miesmuschel}

Proxy-Scalor that Scales According to its Configuration parameter

Description

Scalor that performs the operation in its operation configuration parameter. This is useful, e.g., to make SelectorBest's operation fully parametrizable.

Configuration Parameters

• operation :: Scalor
  Operation to perform. Initialized to ScalorSingleObjective. This is primed when ⁠$prime()⁠ of ScalorProxy is called, and also when ⁠$operate()⁠ is called, to make changing the operation as part of self-adaption possible. However, if the same operation gets used inside multiple ScalorProxy objects, then it is recommended to ⁠$clone(deep = TRUE)⁠ the object before assigning them to operation to avoid frequent re-priming.

Supported Operand Types

Supported Domain classes are: p_lgl ('ParamLgl'), p_int ('ParamInt'), p_dbl ('ParamDbl'), p_fct ('ParamFct')

Dictionary

This Scalor can be created with the short access form scl() (scls() to get a list), or through the the dictionary dict_scalors in the following way:

# preferred:
scl("proxy")
scls("proxy")  # takes vector IDs, returns list of Scalors

# long form:
dict_scalors$get("proxy")

Super classes

miesmuschel::MiesOperator -> miesmuschel::Scalor -> ScalorProxy

Methods

Public methods

• ScalorProxy$new()

• ScalorProxy$prime()

• ScalorProxy$clone()

Inherited methods

• miesmuschel::MiesOperator$help()
• miesmuschel::MiesOperator$operate()
• miesmuschel::MiesOperator$print()
• miesmuschel::MiesOperator$repr()

Method new()

Initialize the ScalorProxy object.

Usage

ScalorProxy$new()

Method prime()

See MiesOperator method. Primes both this operator, as well as the operator given to the operation configuration parameter. Note that this modifies the ⁠$param_set$values$operation⁠ object.

Usage

ScalorProxy$prime(param_set)

Arguments

param_set

(ParamSet)
Passed to MiesOperator⁠$prime()⁠.

Returns

invisible self.

Method clone()

The objects of this class are cloneable with this method.

Usage

ScalorProxy$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

See Also

Other scalors: Scalor, dict_scalors_aggregate, dict_scalors_domcount, dict_scalors_fixedprojection, dict_scalors_hypervolume, dict_scalors_nondom, dict_scalors_one, dict_scalors_single

Other scalor wrappers: dict_scalors_aggregate, dict_scalors_fixedprojection

Examples

set.seed(1)
sp = scl("proxy")
p = ps(x = p_dbl(-5, 5))
# dummy data; note that ScalorOne does not depend on data content
data = data.frame(x = rep(0, 5))
fitnesses = c(1, 5, 2, 3, 0)

sp$param_set$values$operation = scl("one")
sp$prime(p)
sp$operate(data, fitnesses)