selrscale2: Rank Scaling 2

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

Rank Scaling 2

Description

The Rank Scaling-2 is a selection method in which fitness values are scaled according to their ordinal number. Selection pressure can be adjusted by the user.

Usage

selrscale2(fitvals, ns, sels, ...)

Arguments

fitvals	Vector of fitness values belonging to individuals
ns	Number of individuals to be selected
sels	Scaling factor, (1.0 <= sels <= 2.0)
...	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, selpscale, selescale, seltour, seltour2

Examples

fitvals = c(6.1, 3.5, 6.2, 4.4, 5.2)
cnames = paste0("C",1:length(fitvals))
matpool = selrscale2(fitvals)
cat(cnames[matpool],"\n")
matpool = selrscale2(fitvals, sels=2)
cat(cnames[matpool],"\n")

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