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PGAChange

NAME

PGAChange - Repeatedly apply mutation to a string (with an increasing mutation rate) until one or more mutations have occurred.

DESCRIPTION

This routine is usually used with PGADuplicate to modify a duplicate string. It is not intended to replace PGAMutation

INPUT PARAMETERS

ctx

- context variable

p

- string index

pop

- symbolic constant of the population containing string p

OUTPUT PARAMETERS

none

SYNOPSIS

 #include "pgapack.h"
 void  PGAChange(ctx, p, pop)
 PGAContext *ctx
 int p
 int pop
 

LOCATION

duplcate.c

EXAMPLE

 Example:
 Change any string in PGA_NEWPOP that is an exact copy of a string
 in PGA_OLDPOP.  To be complete, we should check the population again
 if any changes are made; for simplicity, we don't.
 
 PGAContext *ctx;
 int b, n;
 :
 n  = PGAGetPopsize(ctx);
 for (b=0; b<n; b++)
 if (PGADuplicate(ctx, b, PGA_NEWPOP, PGA_OLDPOP, n))
 PGAChange(ctx, b, PGA_NEWPOP);