dict_selectors_random {miesmuschel}R Documentation

Random Selector

Description

Random selector that disregards fitness and individual values and selects individuals randomly. Depending on the configuration parameter replace, it samples with or without replacement.

Configuration Parameters

Supported Operand Types

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

Dictionary

This Selector can be created with the short access form sel() (sels() to get a list), or through the the dictionary dict_selectors in the following way:

# preferred:
sel("random")
sels("random")  # takes vector IDs, returns list of Selectors

# long form:
dict_selectors$get("random")

Super classes

miesmuschel::MiesOperator -> miesmuschel::Selector -> SelectorRandom

Methods

Public methods

Inherited methods

Method new()

Initialize the SelectorRandom object.

Usage
SelectorRandom$new()

Method clone()

The objects of this class are cloneable with this method.

Usage
SelectorRandom$clone(deep = FALSE)
Arguments
deep

Whether to make a deep clone.

See Also

Other selectors: Selector, SelectorScalar, dict_selectors_best, dict_selectors_maybe, dict_selectors_null, dict_selectors_proxy, dict_selectors_sequential, dict_selectors_tournament

Examples

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

sr$prime(p)

sr$operate(data, fitnesses, 2)
sr$operate(data, fitnesses, 2)
sr$operate(data, fitnesses, 2)

sr$operate(data, fitnesses, 4)
sr$operate(data, fitnesses, 4)
sr$operate(data, fitnesses, 4)

[Package miesmuschel version 0.0.4-2 Index]