Proxy-Scalor that Scales According to its Configuration parameter

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 Param classes are: ParamLgl, ParamInt, ParamDbl, 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")

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

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()

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Method new()

Initialize the ScalorProxy object.

Usage

ScalorProxy$new()

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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.

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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.

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)
#> [1] 1 5 2 3 0