发现工具箱一源程序有错，改正后请高手审批
本人在用遗传算法工具箱中的crtrp函数时发现错误，经调试改正，已通过运行。现告知大家，并请专家给与审批！crtrp源程序如下：
% CRTRP.M (CReaTe an initial (Real-value) Population)
%
% This function creates a population of given size of random real-values.
%
% Syntax: Chrom = crtrp(Nind,FieldDR);
%
% Input parameters:
% Nind - A scalar containing the number of individuals in the new
% population.
%
% FieldDR - A matrix of size 2 by number of variables describing the
% boundaries of each variable. It has the following structure:
% [lower_bound; (vector with lower bound for each veriable)
% upper_bound] (vector with upper bound for each veriable)
% [lower_bound_var_1lower_bound_var_2 ... lower_bound_var_Nvar;
% upper_bound_var_1upper_bound_var_2 ... upper_bound_var_Nvar]
% example - each individuals consists of 4 variables:
% FieldDR = [-100 -50 -30 -20; % lower bound
% 100503020] % upper bound
%
% Output parameter:
% Chrom - A matrix containing the random valued individuals of the
% new population of size Nind by number of variables.
% Author: Hartmut Pohlheim
% History: 23.11.93 file created
% 25.02.94 clean up, check parameter consistency
function Chrom = crtrp(Nind,FieldDR);
% Check parameter consistency
if nargin < 2, error('parameter FieldDR missing'); end
if nargin > 2, nargin = 2; end
= size(Nind);
= size(FieldDR);
if (mN ~= 1 & nN ~= 1), error('Nind has to be a scalar'); end
if mF ~= 2, error('FieldDR must be a matrix with 2 rows'); end
% Compute Matrix with Range of variables and Matrix with Lower value
Range = rep((FieldDR(2,:)-FieldDR(1,:)),);
Lower = rep(FieldDR(1,:), );
% Create initial population
% Each row contains one individual, the values of each variable uniformly
% distributed between lower and upper bound (given by FieldDR)
Chrom = rand(Nind,Nvar) .* Range + Lower;
% End of function
在运行时一直出现这样的错误提示：（提示在“ if nargin < 2, error('parameter FieldDR missing'); end
这一行”）
"nargin" previously appeared to be used as a function or command, conflicting with its use here as the name of a variable.
A possible cause of this error is that you forgot to initialize the
variable, or you have initialized it implicitly using load or eval.
本人改正如下：
% CRTRP.M (CReaTe an initial (Real-value) Population)
%
% This function creates a population of given size of random real-values.
%
% Syntax: Chrom = crtrp(Nind,FieldDR);
%
% Input parameters:
% Nind - A scalar containing the number of individuals in the new
% population.
%
% FieldDR - A matrix of size 2 by number of variables describing the
% boundaries of each variable. It has the following structure:
% [lower_bound; (vector with lower bound for each veriable)
% upper_bound] (vector with upper bound for each veriable)
% [lower_bound_var_1lower_bound_var_2 ... lower_bound_var_Nvar;
% upper_bound_var_1upper_bound_var_2 ... upper_bound_var_Nvar]
% example - each individuals consists of 4 variables:
% FieldDR = [-100 -50 -30 -20; % lower bound
% 100503020] % upper bound
%
% Output parameter:
% Chrom - A matrix containing the random valued individuals of the
% new population of size Nind by number of variables.
% Author: Hartmut Pohlheim
% History: 23.11.93 file created
% 25.02.94 clean up, check parameter consistency
function Chrom = crtrp(Nind,FieldDR);
% Check parameter consistency
= size(Nind);
= size(FieldDR);
if (nN+Nvar) < 2, error('parameter FieldDR missing'); end
if (nN+Nvar) >= 2, end
if (mN ~= 1 & nN ~= 1), error('Nind has to be a scalar'); end
if mF ~= 2, error('FieldDR must be a matrix with 2 rows'); end
% Compute Matrix with Range of variables and Matrix with Lower value
Range = rep((FieldDR(2,:)-FieldDR(1,:)),);
Lower = rep(FieldDR(1,:), );
% Create initial population
% Each row contains one individual, the values of each variable uniformly
% distributed between lower and upper bound (given by FieldDR)
Chrom = rand(Nind,Nvar) .* Range + Lower;
% End of function
程序通过运行。
请专家审批，如正确，则希望能改正工具箱中的这一程序。以让使用者收益！ 原来的程序没什么问题 % Check parameter consistency
if nargin < 2, error('parameter FieldDR missing'); end
if nargin > 2, nargin = 2; end
我的也和楼主样的，用起来就报错。
我看书上说nargin是输入函数，不可以再赋值。
不知道LS的说没问题是不是真的？ 牛人是
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