selers: Exponantial Ranking Selection

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

Exponantial Ranking Selection

Description

The Exponantial Ranking Selection operator is a selection operator that uses probabilities obtained by exponentially weighting the ordinal numbers of individuals.

Usage

selers(fitvals, ns, selbc, ...)

Arguments

fitvals	Vector of fitness values belonging to individuals
ns	Number of individuals to be selected
selbc	Base of exponent
...	Further arguments passed to or from other methods.

Value

The indices of randomly selected individuals are returned.

Author(s)

Zeynel Cebeci & Erkut Tekeli

See Also

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

Examples

fitvals = c(6, -1, 2, 4, 5) 
cnames = paste0("C",1:length(fitvals)) 
matpool = selers(fitvals, selbc=0.1)
cat(cnames[matpool],"\n")
matpool = selers(fitvals, selbc=0.8)
cat(cnames[matpool],"\n")

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