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PGASetRealInitPercent

PGASetRealInitPercent

Section: PGAPack (2) Updated: 05/01/95
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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.  

INPUT PARAMETERS

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);


 

Index

NAME
DESCRIPTION
INPUT PARAMETERS
OUTPUT PARAMETERS
SYNOPSIS
LOCATION
EXAMPLE

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Time: 21:09:03 GMT, April 16, 2011