adana (version 1.1.0)

bsearchmut1: Boundary Search Mutation 1

Description

Boundary Search Mutation-1 is an algorithm based on probing the boundaries of the convenience region in constraint processing for NLP optimization (Michalewicz & Schoenauer, 1996). Two genes are randomly selected from the chromosome and one of them is multiplied by a random factor at the q value, while the other gene is multiplied by $1/q$.

This operator is used for value encoded (integer or real number) chromosomes.

Usage

bsearchmut1(y, mutq, ...)

Arguments

y

A vector. Chromosome of the offspring

mutq

A number. Value of q

…

Further arguments passed to or from other methods.

Value

mutant

A vector. Chromosome of the offspring

mutgen

A vector. The numbers of the mutated genes.

References

Michalewicz, Z. and Schoenauer, M. (1996). Evolutionary algorithms for constrained parameter optimization problems. Evolutionary Computation, 4(1), 1-32.

See Also

mutate, bitmut, randmut, randmut2, randmut3, randmut4, unimut, boundmut, nunimut, nunimut2, powmut, powmut2, gaussmut, gaussmut2, gaussmut3, bsearchmut2, swapmut, invmut, shufmut, insmut, dismut, invswapmut, insswapmut, invdismut

Examples

# NOT RUN {
offspring = c(8, 6, 4, 1, 3)
#set.seed(12)
bsearchmut1(offspring)
mutq = 0.5
#set.seed(12)
bsearchmut1(offspring, mutq=mutq)
# }