recombination_blxAlphaBeta: Blend Alpha Beta recombination for DE
In ExpDE: Modular Differential Evolution for Experimenting with Operators

Description Usage Arguments Details Value Recombination Parameters References

View source: R/recombination_blxAlphaBeta.R

Implements the "/blxAlphaBeta" (Blend Alpha Beta) recombination for the ExpDE framework

1	recombination_blxAlphaBeta(X, M, recpars)

`X`	population matrix (original)
`M`	population matrix (mutated)
`recpars`	recombination parameters (see `Recombination parameters` for details)

This routine also implements two special cases:

BLX-alpha recombination (blxAlpha), by setting recpars$alpha = recpars$beta);
Flat recombination (flat), by setting recpars$alpha = recpars$beta = 0)

Matrix U containing the recombined population

The recpars parameter contains all parameters required to define the recombination. recombination_blxAlpha() understands the following fields in recpars:

alpha : extrapolation parameter for 'best' parent vector.
Accepts real value 0 <= alpha <= 0.5.
beta : extrapolation parameter for 'worst' parent vector.
Accepts real value 0 <= beta <= 0.5.

@section Warning: This recombination operator evaluates the candidate solutions in M, which adds an extra popsize evaluations per iteration.

F. Herrera, M. Lozano, A. M. Sanchez, "A taxonomy for the crossover operator for real-coded genetic algorithms: an experimental study", International Journal of Intelligent Systems 18(3) 309-338, 2003.

ExpDE documentation built on May 2, 2019, 9:11 a.m.