bstr2rval.m

基本遗传算法的matlab源程序

function indiv=bstr2rval(geneCode,genek_bitnum,bounds)
%  decoding the binary gene string to the actual value
%  syntax:indiv=bstr2rval(geneCode,genek_bitnum,bounds)
%
%  Output Arguments:
%      indiv        ---- a matrix of all individual in form of actual value
%  Input Arguments:
%      geneCode     ---- a matrix of chromosome codes
%      genek_bitnum ---- length of gene string
%      bounds       ---- a matrix of upper and lower bounds on the variables
%
%  Author:Yan Anxin
%  ID number:081810
%  Date:finished on 2008.11.29
%  Yax235 DreamWorks, SEE, SEU, 2# Sipailou Nanjing, 210096, P.R.China 

[sizePop,]=size(geneCode);varNum=length(genek_bitnum);
indiv=zeros();
for ik=1:sizePop
    genePor=geneCode(ik,:);porNum=1;
    for jk=1:varNum
        bou=bounds(jk,:);a=bou(1);b=bou(2);
        geneStr=genePor(porNum:(porNum+genek_bitnum(jk)-1));
        porNum=porNum+genek_bitnum(jk);
        rval=bin2dec(geneStr);
        indiv(ik,jk)=a+(b-a)*rval/(2^(genek_bitnum(jk))-1);
    end    
end