adana (version 1.1.0)

selrscale2: 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.

See Also

select, selrand, selrswrp, selrws, selrws2, selrss, selsus, seldet, selwscale, selsscale, selsscale2, sellscale, selrscale, selpscale, selescale, seltour, seltour2

Examples

# NOT RUN {
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")
# }