NAME¶
PGASetRealInitPercent - sets the upper and lower bounds for randomly
initializing real-valued genes.
DESCRIPTION¶
For each gene these bounds define an interval from which the initial allele
value is selected uniformly randomly. With this routine the user specifies a
median value and a percent offset for each allele.
- ctx
- - context variable
- median
- - an array containing the mean value of the interval
- percent
- - an array containing the percent offset to add and subtract to the median
to define the interval
OUTPUT PARAMETERS¶
- none
-
SYNOPSIS¶
#include "pgapack.h"
void PGASetRealInitPercent(ctx, median, percent)
PGAContext *ctx
double *median
double *percent
LOCATION¶
real.c
EXAMPLE¶
Set the initialization routines to select a value for each real-valued
gene i uniformly randomly from the interval [i-v,i+v], where $v = i/2$.
Assumes all strings are the same length.
PGAContext *ctx;
double *median, *percent;
int i, stringlen;
:
stringlen = PGAGetStringLength(ctx);
median = (double *) malloc(stringlen*sizeof(double));
percent = (double *) malloc(stringlen*sizeof(double));
for(i=0;i<stringlen;i++) {
median[i] = (double) i;
percent[i] = 0.5;
}
PGASetRealInitPercent(ctx, median, percent);