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PGASetRealInitRange

NAME

PGASetRealInitRange - 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. The user specifies two arrays containing lower and bound for each gene to define the interval. This is the default strategy for initializing real-valued strings. The default interval is $[0,1.0]$ for each gene.

INPUT PARAMETERS

ctx

- context variable

min

- array containing the lower bound of the interval for each gene

mac

- array containing the upper bound of the interval for each gene

OUTPUT PARAMETERS

none

SYNOPSIS

 #include "pgapack.h"
 void  PGASetRealInitRange(ctx, min, max)
 PGAContext *ctx
 double *min
 double *max
 

LOCATION

real.c

EXAMPLE

 Set the initialization routines to select a value for each real-valued
 gene i uniformly randomly from the interval [-10.,i]
 Assumes all strings are of the same length.
 
 PGAContext *ctx;
 double *low, *high;
 int i, stringlen;
 :
 stringlen = PGAGetStringLength(ctx);
 low  = (double *) malloc(stringlen*sizeof(double));
 high = (double *) malloc(stringlen*sizeof(double));
 for(i=0;i<stringlen;i++) {
 low[i]  = -10.0;
 high[i] = i;
 }
 PGASetRealInitRange(ctx, low, high);