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    filename: bs2rv.m
    path of file: ./repos/GA-Toolbox
    
    the code of the file until where you have to start completion: % BS2RV.m - Binary string to real vector
%
% This function decodes binary chromosomes into vectors of reals. The
% chromosomes are seen as the concatenation of binary strings of given
% length, and decoded into real numbers in a specified interval using
% either standard binary or Gray decoding.
%
% Syntax:       Phen = bs2rv(Chrom,FieldD)
%
% Input parameters:
%
%               Chrom    - Matrix containing the chromosomes of the current
%                          population. Each line corresponds to one
%                          individual's concatenated binary string
%           			   representation. Leftmost bits are MSb and
%			               rightmost are LSb.
%
%               FieldD   - Matrix describing the length and how to decode
%           			   each substring in the chromosome. It has the
%           			   following structure:
%
%				[len;		(num)
%				 lb;		(num)
%				 ub;		(num)
%				 code;		(0=binary     | 1=gray)
%				 scale;		(0=arithmetic | 1=logarithmic)
%				 lbin;		(0=excluded   | 1=included)
%				 ubin];		(0=excluded   | 1=included)
%
%			   where
%				len   - row vector containing the length of
%   					each substring in Chrom. sum(len)
%			    		should equal the individual length.
%				lb,
%				ub    - Lower and upper bounds for each
%			    		variable. 
%				code  - binary row vector indicating how each
%				    	substring is to be decoded.
%
    
function decodes binary chromosomes into vectors of reals. The
% chromosomes are seen as the concatenation of binary strings of given
% length, and decoded into real numbers in a specified interval using
% either standard binary or Gray decoding.
%
% Syntax:       Phen = bs2rv(Chrom,FieldD)
%
% Input parameters:
%
%               Chrom    - Matrix containing the chromosomes of the current
%                          population. Each line corresponds to one
%                          individual's concatenated binary string
%           			   representation. Leftmost bits are MSb and
%			               rightmost are LSb.
%
%               FieldD   - Matrix describing the length and how to decode
%           			   each substring in the chromosome. It has the
%           			   following structure:
%
%				[len;		(num)
%				 lb;		(num)
%				 ub;		(num)
%				 code;		(0=binary     | 1=gray)
%				 scale;		(0=arithmetic | 1=logarithmic)
%				 lbin;		(0=excluded   | 1=included)
%				 ubin];		(0=excluded   | 1=included)
%
%			   where
%				len   - row vector containing the length of
%   					each substring in Chrom. sum(len)
%			    		should equal the individual length.
%				lb,
%				ub    - Lower and upper bounds for each
%			    		variable. 
%				code  - binary row vector indicating how each
%				    	substring is to be decoded.
%				scale - binary row vector indicating where to
%				    	use arithmetic and/or logarithmic
%				    	scaling.
%				lbin,
%				ubin  - binary row vectors indicating whether
%				    	or not to include each bound in the
%				    	representation range
%
% Output parameter:
%
%               Phen     - Real matrix containing the population phenotypes.
%
% Author: Carlos Fonseca, 	Updated: Andrew Chipperfield,   
% Date: 08/06/93,		    Date: 26-Jan-94,
%
% Tested under MATLAB v6 by Alex Shenfield (17-Jan-03)

function Phen = bs2rv(Chrom,FieldD)

% Identify the population size (Nind)
%      and the chromosome length (Lind)
[Nind,Lind] = size(Chrom);

% Identify the number of decision variables (Nvar)
[seven,Nvar] = size(FieldD);

if seven ~= 7
	error('FieldD must have 7 rows.');
end