Rechercher une page de manuel
PGAFitness
Langue: en
Version: 261356 (debian - 07/07/09)
Section: 1 (Commandes utilisateur)
NAME
PGAFitness - Maps the user's evaluation function value to a fitness value.DESCRIPTION
First, the user's evaluation function value is translated to all positive values if any are negative. Next, this positive sequence is translated to a maximization problem if the user's optimization direction was minimization. This positive sequence is then mapped to a fitness value using linear ranking, linear normalization fitness, or the identity (i.e., the evaluation function value). This routine is usually used after PGAEvaluate is called.INPUT PARAMETERS
- ctx
- - context variable
- pop
- - symbolic constant of the population to calculate fitness for
OUTPUT PARAMETERS
- none
SYNOPSIS
#include "pgapack.h" void PGAFitness(ctx, popindex) PGAContext *ctx int popindex
LOCATION
fitness.cEXAMPLE
Example: Calculate the fitness of all strings in population PGA_NEWPOP after calling PGAEvaluate to calculate the strings evaluation value. double energy(PGAContext *ctx, int p, int pop); PGAContext *ctx; : PGAEvaluate(ctx, PGA_NEWPOP, energy); PGAFitness (ctx, PGA_NEWPOP);
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre