xegaAsPipelineFactory

<code>xegaAsPipelineFactory()</code> implements the selection
 of one of the asPipeline functions in this
 package by specifying a text string.
 The selection fails ungracefully (produces
 a runtime error) if the label does not match.
 The functions are specified locally.
Current support:
<ol>
<li>"NoPipe" returns <code>asPipelineID()</code>:
 No change to population.</li>
<li>"PipeC" returns <code>asPipeline()</code>: 
 Population a list of closures of genetic operator 
 populations.</li>
<li>"PipeG" returns <code>asPipelineG()</code>:
 Population consists of genes with embedded 
 genetic operator pipelines.</li>
</ol>

This collection of gene representation-independent functions
implements the population layer of extended evolutionary and genetic
algorithms and its support
for the R-package 'xega' <https://CRAN.R-project.org/package=xega>.
The population layer consists of functions
for initializing, logging, observing, evaluating a population of genes,
as well as of computing the next population. For parallel evaluation of a
population of genes 4 execution models - named Sequential, MultiCore,
FutureApply, and Cluster - are provided. They are implemented by
configuring the lapply() function. The execution model FutureApply can be
externally configured as recommended by Bengtsson (2021)
<doi:10.32614/RJ-2021-048>. Configurable acceptance rules and cooling
schedules (see Kirkpatrick, S., Gelatt, C. D. J, and Vecchi, M. P. (1983)
<doi:10.1126/science.220.4598.671>, and Aarts, E., and Korst, J.
(1989, ISBN:0-471-92146-7) offer simulated annealing or greedy randomized
approximate search procedure elements. Adaptive crossover and mutation
rates depending on population statistics generalize the approach of
Stanhope, S. A. and Daida, J. M. (1996, ISBN:0-18-201-031-7).
For 'xega''s architecture,
see Geyer-Schulz, A. (2025) <doi:10.5445/IR/1000187255>.

Andreas Geyer-Schulz

xegaPopulation

Genetic Population Level Functions

xegaAsPipelineFactory function

<dl><dt>method</dt>
<dd>A string specifying the asPipeline function.</dd></dl>

Arguments

Configure asPipeline. — xegaAsPipelineFactory

<dl>

<dt>method</dt>
<dd>A string specifying the asPipeline function.</dd>

</dl>

xegaAsPipelineFactory: Configure asPipeline.

Description

Usage

Value

Arguments

See Also

Examples