PGAFitness (1)

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.

ctx

- context variable

pop

- symbolic constant of the population to calculate fitness for

none

#include "pgapack.h"
void  PGAFitness(ctx, popindex)
PGAContext *ctx
int popindex

fitness.c

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);