select: Select parents for the mating pool

In adana: Adaptive Nature-Inspired Algorithms for Hybrid Genetic Optimization

Select parents for the mating pool

Description

The select function is a function that wraps all parent selection algorithms. It is coded for call purposes from adana main function.

Usage

select(selfunc, fitvals, ns, selb, selbc,
                  selc, selk, sells, selns, selps, sels, selt, 
                  selt0, selw, selg, selgmax, fmin, reptype, ...)

Arguments

selfunc	Name of selection function
fitvals	Vector of fitness values belonging to individuals
ns	Number of individuals to be selected
selb	Exponent coefficent, (selb >= 0.0)
selbc	Base of exponent
selc	Scaling parameter
selk	Power factor
sells	Scaling factor
selns	Number of Selection pressure
selps	Percentage of Selection, (0.0 <= selps <= 1.0)
sels	Selection pressure, (1.0 <= sels <= 2.0)
selt	Number of tournament size
selt0	Number, Initial temperature
selw	Number, Window Size
selg	Current generation number
selgmax	Maximum generation number
fmin	The number to subtract from all fitness values.
reptype	Type of Sampling, TRUE : without repetitions, FALSE : with repetitions
...	Further arguments passed to or from other methods.

Value

The indices of randomly selected individuals are returned.

Author(s)

Zeynel Cebeci & Erkut Tekeli

References

Cebeci, Z. (2021). R ile Genetik Algoritmalar ve Optimizasyon Uygulamalari, 535 p. Ankara:Nobel Akademik Yayincilik.

See Also

selrand, selrswrp, selrws, selrws2, selrss, selsus, seldet, selwscale, selsscale, selsscale2, sellscale, selrscale, selrscale2, selpscale, selescale, seltour, seltour2, selboltour, sellrs, sellrs2, sellrs3, selnlrs, selers, seltrunc

Examples

# Create population
population = initialize(initfunc=initbin, n=10, m=8)
head(population, 5)
# Calculate fitness values
m = ncol(population)-2
fitvals = evaluate(maxone, population[,1:m])
population[,"fitval"] = fitvals
head(population, 5)
# Select parents by RWS
selidx = select(selfunc=selrws, fitvals=fitvals)
matpool = population[selidx,]
head(matpool, 5)
# Selected chromosomes
table(rownames(matpool))

adana documentation built on March 18, 2022, 6:03 p.m.