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小木虫论坛-学术科研互动平台 » 计算模拟区 » 程序语言 » MATLAB/Mathematica » 用matlab出现“不合适的矩阵安排”问题，求具体修改方法和错误根源
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ruanjayrock

金虫 (小有名气)

[求助] 用matlab出现“不合适的矩阵安排”问题，求具体修改方法和错误根源已有1人参与

源代码如下：
                 见附件。
关于代码的一些注释：

                                   %问题出在这个while（gen<10）大循环的while（1）里面 代码目的是多目标优化，寻找方程组最小值。x1 x2是随机生成的未知数，方程为f1 f2 f3
                                    %我先随机找到三个方程的各一个值，然后用x1 x2产生的值去除他们，得到3组数据差异不太大的数，放到D矩阵中。
                                    %然后找到D中三个函数值的和最小的放到F矩阵中，并消除D中已经放进F的行。
                                    %while循环是对D中剩余数据处理，让他们与原来D中和最小的数的三个函数值进行比较，寻找全小于，<<>.<><,><<关系的行，并将其放到
                                    %F矩阵中，并在D中消去这些行，如果循环完一次，F中添加0行，以区分。再从头开始，直到D矩阵变成空矩阵。然后gen+1，继续这个过程。
                                    %直到满足gen的条件。所以D矩阵与F矩阵都是
                                    %动态矩阵，出现的错误就是在数据拷贝的时候提示“不合理的空矩阵安排”。

希望大神能帮我找到问题，并且给点修改指导，多谢多谢！
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1楼2014-07-01 15:02:51
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dnp

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把程序贴出来，然后把错误的所有信息都贴出来，报错错误信息，错误发生的地方，错误的来源等，这样别人才好帮你排除问题，你提供的信息相当于没有任何信息~~
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What would Jesus do?
2楼2014-07-02 12:19:04
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ruanjayrock

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引用回帖:
2楼: Originally posted by dnp at 2014-07-02 12:19:04
把程序贴出来，然后把错误的所有信息都贴出来，报错错误信息，错误发生的地方，错误的来源等，这样别人才好帮你排除问题，你提供的信息相当于没有任何信息~~

好的，谢谢！本来是程序太多了，怕太占版面
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3楼2014-07-03 09:07:00
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ruanjayrock

金虫 (小有名气)
具体的程序代码如下：

clc;
clear;
CC=200;
CCC=120;
%函数定义
x1=single(3*(-1+2*rand(1,CC)));
x2=single(3*(-1+2*rand(1,CC)));

f1=0.5*(x1.^2+x2.^2)+sin(x1.^2+x2.^2);
f2=((3*x1-2*x2+4).^2)/8+((x1-x2+1).^2)/27+15;
f3=1./(x1.^2+x2.^2+1)-1.1*exp(-x1.^2-x2.^2);

%变量定义
u=CC;
pc=0.8;
pm=0.01;
cigema=0.0125;
E=0;
P=0;
A=[x1',x2',f1',f2',f3'];
xx=randi([1,CC]);
C=A(xx,:);
D=[x1',x2',A(:,3)./C(3),A(:,4)./C(4),A(:,5)./C(5),abs(A(:,3)./C(3))+abs(A(:,4)./C(4))+abs(A(:,5)./C(5))];
DD=D;
[E,P]=min(D(:,6));

a=D(P,3);
b=D(P,4);
c=D(P,5);

j=1;
F=[];
F(j,:)=D(P,:);
j=j+1;
D(P,:)=[];
i=1;
m=size(D,1);
mm=1;
count=0;
K=zeros(1,m);
KK=[];
KKK=[];
EE=[];
t=1;
gen=0;
FF=zeros(CCC,7);
while(gen<100)
                                              %问题出在这两个while循环中
while(1)
             for i=1:m   
                  if(((D(i,3)<a)&&(D(i,4)<b)&&(D(i,5)<c))||...
                    ((D(i,3)>a)&&(D(i,4)<b)&&(D(i,5)<c))||...
                    ((D(i,3)<a)&&(D(i,4)>b)&&(D(i,5)<c))||...
                    ((D(i,3)<a)&&(D(i,4)<b)&&(D(i,5)>c)))%||...
                    %((D(i,3)>a)&&(D(i,4)>b)&&(D(i,5)<c))||...
                    %((D(i,3)>a)&&(D(i,4)<b)&&(D(i,5)>c))||...
                    %((D(i,3)>a)&&(D(i,4)>b)&&(D(i,5)<c)))
                  F(j,:)=D(i,:);
                  K(i)=1;
                  j=j+1;
                   end
             end  
             for i=1:m
                 if K(i)~=1
                     EE(t,:)=D(i,:);
                     t=t+1;
                 end
             end
             D(1:t-1,:)=EE(1:t-1,:);
             D(t:m,:)=[];
             K=zeros(1,t-1);
             t=1;
                 F(j,:)=0;
                 KK(j)=1;
                 j=j+1;
              [E,P]=min(D(:,6));  
                 F(j,:)=D(P,:);
                 a=D(P,3);
                 b=D(P,4);
                 c=D(P,5);      
                 D(P,:)=[];
                 m=size(D,1);                                 
                 K=[K,zeros(1)];
                 j=j+1;
                 if m==0
%                      F(j,:)=0;
%                      KK(j)=1;
%                      j=j+1;
%                      F(j,:)=D(1,:);
                     break;
                 end
end
            
m=size(F,1);
mm=size(KK,2);
for i=1:mm
    if KK(i)==1
        KKK(1:i-t,:)=F(t:i-1,:);
        KKK=sortrows(KKK,6);
        F(t:i-1,:)=KKK(1:i-t,:);
        KKK=[];
        t=i+1;
    end
end
        KKK(t:m,:)=F(t:m,:);
        KKK=sortrows(KKK,6);
        F(t:i,:)=KKK(t:i,:);
  %分配适应度 最小的值适应度为0.9 最大的值适应度为0.1
KKKK=zeros(m,1);

count=0.8/(CC-1);
t=0;
for i=1:m
     if F(i,:)==0
         t=t+1;
     else
         KKKK(i)=0.9-count*(i-1-t);
     end
end
F=[F,KKKK];
F(find(sum(abs(F'))==0),:)=[];

m=size(F,1);
count=1;
while(1)
    t=0.1+0.8*rand(1);
    for mm=1:m
        if F(mm,7)>t
            FF(count,:)=F(mm,:);
            count=count+1;
            if(count>CCC)
                break;
            end
        end
    end
    if(count>CCC)
       break;
    end
end
   %杂交
   for m=1:20
       if (rand(1)<0.8)
         RR=randperm(10);
         RRR=zeros(3,7);
         RRR(1,1)=FF(RR(1),1)+FF(RR(2),1);
         RRR(1,2)=FF(RR(1),2)+FF(RR(2),2);
         RRR(2,1)=1.5*FF(RR(1),1)-0.5*FF(RR(2),1);
         RRR(2,2)=1.5*FF(RR(1),2)-0.5*FF(RR(2),2);
         RRR(3,1)=1.5*FF(RR(2),1)-0.5*FF(RR(1),1);
         RRR(3,2)=1.5*FF(RR(2),2)-0.5*FF(RR(1),2);
        for i=1:3
           RRR(i,3)=(0.5*(RRR(i,1)^2+RRR(i,2)^2)+sin(RRR(i,1)^2+RRR(i,2)^2))/C(3);
           RRR(i,4)=(((3*RRR(i,1)-2*RRR(i,2)+4)^2)/8+((RRR(i,1)-RRR(i,2)+1)^2)/27+15)/C(4);
           RRR(i,5)=(1/(RRR(i,1)^2+RRR(i,2)^2+1)-1.1*exp(-(RRR(i,1)^2-(RRR(i,2)^2))))/C(5);
           RRR(i,6)=abs(RRR(i,3))+abs(RRR(i,4))+abs(RRR(i,5));
           RRR(i,7)=0;
        end
          RRR=sortrows(RRR,6);
          FF(RR(1),:)=RRR(1,:);
          FF(RR(2),:)=RRR(2,:);
       end
   end
   
   %变异
   for m=1:10
       if rand(1)<0.01
          MM=randperm(10);
          MMM=zeros(1,7);
          MMM(1,:)=FF(MM(1),:);
          t=rand(1)>0.5;
          if t==0
            [~,P]=max(FF(:,6));
            MMM(1,1)=FF(MM(1),1)+(FF(MM(1),1)-FF(P,1))*rand(1);
            MMM(1,2)=FF(MM(1),2)+(FF(MM(1),2)-FF(P,2))*rand(1);
          else
             [~,P]=min(FF(:,6));
            MMM(1,1)=MMM(1,1)+(MMM(1,1)-FF(P,1))*rand(1);
            MMM(1,2)=MMM(1,2)+(MMM(1,2)-FF(P,2))*rand(1);
          end
           MMM(1,3)=(0.5*(MMM(1,1)^2+MMM(1,2)^2)+sin(MMM(1,1)^2+MMM(1,2)^2))/C(3);
           MMM(1,4)=(((3*MMM(1,1)-2*MMM(1,2)+4)^2)/8+((MMM(1,1)-MMM(1,2)+1)^2)/27+15)/C(4);
           MMM(1,5)=(1/(MMM(1,1)^2+MMM(1,2)^2+1)-1.1*exp(-(MMM(1,1)^2-(MMM(1,2)^2))))/C(5);
           MMM(1,6)=abs(MMM(1,3))+abs(MMM(1,4))+abs(MMM(1,5));
           MMM(1,7)=0;
           FF(MM(1),:)=MMM(1,:);
       end
   end
   t=randperm(10);
   t(2)=t(1)+4;
   %D=zeros(1:CC-1,:);
   D=[FF(:,1:6); F(t(1):t(2),1:6)];
   [E,P]=min(D(:,6));
    a=D(P,3);
    b=D(P,4);
    c=D(P,5);
   j=1;
   F=[];
   F(j,:)=D(P,:);
   j=j+1;
   i=1;
   m=size(D,1);
   mm=1;
   count=0;
   K=zeros(1,m);
   KK=[];
   KKK=[];
   EE=[];
   t=1;      
   gen=gen+1;   
end
  Y1=FF(:,3).*C(3);
  Y2=FF(:,4).*C(4);
  Y3=FF(:,5).*C(5);
  Y=[Y1 Y2 Y3];
  plot3(Y1,Y2,Y3,'*');
  xlim([0 10]);
  ylim([0 60]);
  zlim([-0.1 0.3])
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4楼2014-07-04 19:31:40
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ruanjayrock

金虫 (小有名气)
引用回帖:
2楼: Originally posted by dnp at 2014-07-02 12:19:04
把程序贴出来，然后把错误的所有信息都贴出来，报错错误信息，错误发生的地方，错误的来源等，这样别人才好帮你排除问题，你提供的信息相当于没有任何信息~~

代码贴出来了，错误信息是第77行矩阵赋值出现错误，提示是不合理的空矩阵安排，谢谢！
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5楼2014-07-04 19:33:00
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ruanjayrock

金虫 (小有名气)
引用回帖:
2楼: Originally posted by dnp at 2014-07-02 12:19:04
把程序贴出来，然后把错误的所有信息都贴出来，报错错误信息，错误发生的地方，错误的来源等，这样别人才好帮你排除问题，你提供的信息相当于没有任何信息~~

代码已经贴出来了，错误信息是77行矩阵赋值出错，提示是不合适的空矩阵安排，错误来源我也不清楚为什么出现这种状况，我感觉是正确的，也可能是由于两个都是动态矩阵的缘故。现在不知道怎么样来解决这个问题。。
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6楼2014-07-04 19:35:27
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dnp

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【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
ruanjayrock: 金币+100, ★★★很有帮助, 我之前以为令D=【】会让它最后变成空矩阵，现在也打算改变算法，用循环的方式对数据进行对调，就不必需要F矩阵，直接在D矩阵上操作，之前的方法理解和实施起来比较方便，没想到算法本身有点问题，循环的方法我再试试 2014-07-06 09:22:34
我跟踪了一下你矩阵D的大小，发现你的算法里面矩阵D是不断变小，而且会最终变成一个空的矩阵，自然在用矩阵D里面的元素对F矩阵进行赋值的时候会出错，所以你还是改进一下你的算法，并非matlab或者其他的问题。按照你的理解，可能矩阵在进行赋值之后，删除里面的元素的时候(命令D(t:m,=[]，不会变成空的矩阵，但在运行的时候，这句话在循环体里面会使矩阵D成为空矩阵。这可能是你编地过程中有问题，或者逻辑上需要改进。
下面是我跟踪你不断用while循环过程中矩阵D大小的变化，到出错那一行的时候矩阵D是0乘6的矩阵，是空的，也就是说那次循环后D(t:m,=[];把矩阵D变成空的了，我不懂你的算法，所以你还是仔细考察改进一下比较好：
CODE:
The size of matrix D is 187 by 6 when gen = 0 and after iterating 1 times in the inner while loop.
The size of matrix D is 184 by 6 when gen = 0 and after iterating 2 times in the inner while loop.
The size of matrix D is 181 by 6 when gen = 0 and after iterating 3 times in the inner while loop.
The size of matrix D is 179 by 6 when gen = 0 and after iterating 4 times in the inner while loop.
The size of matrix D is 177 by 6 when gen = 0 and after iterating 5 times in the inner while loop.
The size of matrix D is 173 by 6 when gen = 0 and after iterating 6 times in the inner while loop.
The size of matrix D is 126 by 6 when gen = 0 and after iterating 7 times in the inner while loop.
The size of matrix D is 114 by 6 when gen = 0 and after iterating 8 times in the inner while loop.
The size of matrix D is 97 by 6 when gen = 0 and after iterating 9 times in the inner while loop.
The size of matrix D is 86 by 6 when gen = 0 and after iterating 10 times in the inner while loop.
The size of matrix D is 82 by 6 when gen = 0 and after iterating 11 times in the inner while loop.
The size of matrix D is 75 by 6 when gen = 0 and after iterating 12 times in the inner while loop.
The size of matrix D is 74 by 6 when gen = 0 and after iterating 13 times in the inner while loop.
The size of matrix D is 64 by 6 when gen = 0 and after iterating 14 times in the inner while loop.
The size of matrix D is 53 by 6 when gen = 0 and after iterating 15 times in the inner while loop.
The size of matrix D is 48 by 6 when gen = 0 and after iterating 16 times in the inner while loop.
The size of matrix D is 44 by 6 when gen = 0 and after iterating 17 times in the inner while loop.
The size of matrix D is 40 by 6 when gen = 0 and after iterating 18 times in the inner while loop.
The size of matrix D is 34 by 6 when gen = 0 and after iterating 19 times in the inner while loop.
The size of matrix D is 33 by 6 when gen = 0 and after iterating 20 times in the inner while loop.
The size of matrix D is 26 by 6 when gen = 0 and after iterating 21 times in the inner while loop.
The size of matrix D is 25 by 6 when gen = 0 and after iterating 22 times in the inner while loop.
The size of matrix D is 24 by 6 when gen = 0 and after iterating 23 times in the inner while loop.
The size of matrix D is 23 by 6 when gen = 0 and after iterating 24 times in the inner while loop.
The size of matrix D is 22 by 6 when gen = 0 and after iterating 25 times in the inner while loop.
The size of matrix D is 18 by 6 when gen = 0 and after iterating 26 times in the inner while loop.
The size of matrix D is 11 by 6 when gen = 0 and after iterating 27 times in the inner while loop.
The size of matrix D is 10 by 6 when gen = 0 and after iterating 28 times in the inner while loop.
The size of matrix D is 8 by 6 when gen = 0 and after iterating 29 times in the inner while loop.
The size of matrix D is 7 by 6 when gen = 0 and after iterating 30 times in the inner while loop.
The size of matrix D is 5 by 6 when gen = 0 and after iterating 31 times in the inner while loop.
The size of matrix D is 4 by 6 when gen = 0 and after iterating 32 times in the inner while loop.
The size of matrix D is 3 by 6 when gen = 0 and after iterating 33 times in the inner while loop.
The size of matrix D is 2 by 6 when gen = 0 and after iterating 34 times in the inner while loop.
The size of matrix D is 1 by 6 when gen = 0 and after iterating 35 times in the inner while loop.
The size of matrix D is 103 by 6 when gen = 1 and after iterating 1 times in the inner while loop.
The size of matrix D is 102 by 6 when gen = 1 and after iterating 2 times in the inner while loop.
The size of matrix D is 97 by 6 when gen = 1 and after iterating 3 times in the inner while loop.
The size of matrix D is 96 by 6 when gen = 1 and after iterating 4 times in the inner while loop.
The size of matrix D is 91 by 6 when gen = 1 and after iterating 5 times in the inner while loop.
The size of matrix D is 90 by 6 when gen = 1 and after iterating 6 times in the inner while loop.
The size of matrix D is 87 by 6 when gen = 1 and after iterating 7 times in the inner while loop.
The size of matrix D is 86 by 6 when gen = 1 and after iterating 8 times in the inner while loop.
The size of matrix D is 72 by 6 when gen = 1 and after iterating 9 times in the inner while loop.
The size of matrix D is 25 by 6 when gen = 1 and after iterating 10 times in the inner while loop.
The size of matrix D is 13 by 6 when gen = 1 and after iterating 11 times in the inner while loop.
The size of matrix D is 5 by 6 when gen = 1 and after iterating 12 times in the inner while loop.
The size of matrix D is 4 by 6 when gen = 1 and after iterating 13 times in the inner while loop.
The size of matrix D is 3 by 6 when gen = 1 and after iterating 14 times in the inner while loop.
The size of matrix D is 2 by 6 when gen = 1 and after iterating 15 times in the inner while loop.
The size of matrix D is 1 by 6 when gen = 1 and after iterating 16 times in the inner while loop.
The size of matrix D is 90 by 6 when gen = 2 and after iterating 1 times in the inner while loop.
The size of matrix D is 89 by 6 when gen = 2 and after iterating 2 times in the inner while loop.
The size of matrix D is 88 by 6 when gen = 2 and after iterating 3 times in the inner while loop.
The size of matrix D is 83 by 6 when gen = 2 and after iterating 4 times in the inner while loop.
The size of matrix D is 82 by 6 when gen = 2 and after iterating 5 times in the inner while loop.
The size of matrix D is 77 by 6 when gen = 2 and after iterating 6 times in the inner while loop.
The size of matrix D is 76 by 6 when gen = 2 and after iterating 7 times in the inner while loop.
The size of matrix D is 73 by 6 when gen = 2 and after iterating 8 times in the inner while loop.
The size of matrix D is 72 by 6 when gen = 2 and after iterating 9 times in the inner while loop.
The size of matrix D is 56 by 6 when gen = 2 and after iterating 10 times in the inner while loop.
The size of matrix D is 40 by 6 when gen = 2 and after iterating 11 times in the inner while loop.
The size of matrix D is 8 by 6 when gen = 2 and after iterating 12 times in the inner while loop.
The size of matrix D is 5 by 6 when gen = 2 and after iterating 13 times in the inner while loop.
The size of matrix D is 2 by 6 when gen = 2 and after iterating 14 times in the inner while loop.
The size of matrix D is 1 by 6 when gen = 2 and after iterating 15 times in the inner while loop.
The size of matrix D is 51 by 6 when gen = 3 and after iterating 1 times in the inner while loop.
The size of matrix D is 50 by 6 when gen = 3 and after iterating 2 times in the inner while loop.
The size of matrix D is 49 by 6 when gen = 3 and after iterating 3 times in the inner while loop.
The size of matrix D is 48 by 6 when gen = 3 and after iterating 4 times in the inner while loop.
The size of matrix D is 42 by 6 when gen = 3 and after iterating 5 times in the inner while loop.
The size of matrix D is 41 by 6 when gen = 3 and after iterating 6 times in the inner while loop.
The size of matrix D is 36 by 6 when gen = 3 and after iterating 7 times in the inner while loop.
The size of matrix D is 35 by 6 when gen = 3 and after iterating 8 times in the inner while loop.
The size of matrix D is 34 by 6 when gen = 3 and after iterating 9 times in the inner while loop.
The size of matrix D is 31 by 6 when gen = 3 and after iterating 10 times in the inner while loop.
The size of matrix D is 30 by 6 when gen = 3 and after iterating 11 times in the inner while loop.
The size of matrix D is 14 by 6 when gen = 3 and after iterating 12 times in the inner while loop.
The size of matrix D is 4 by 6 when gen = 3 and after iterating 13 times in the inner while loop.
The size of matrix D is 3 by 6 when gen = 3 and after iterating 14 times in the inner while loop.
The size of matrix D is 2 by 6 when gen = 3 and after iterating 15 times in the inner while loop.
The size of matrix D is 1 by 6 when gen = 3 and after iterating 16 times in the inner while loop.
The size of matrix D is 53 by 6 when gen = 4 and after iterating 1 times in the inner while loop.
The size of matrix D is 52 by 6 when gen = 4 and after iterating 2 times in the inner while loop.
The size of matrix D is 51 by 6 when gen = 4 and after iterating 3 times in the inner while loop.
The size of matrix D is 50 by 6 when gen = 4 and after iterating 4 times in the inner while loop.
The size of matrix D is 44 by 6 when gen = 4 and after iterating 5 times in the inner while loop.
The size of matrix D is 43 by 6 when gen = 4 and after iterating 6 times in the inner while loop.
The size of matrix D is 38 by 6 when gen = 4 and after iterating 7 times in the inner while loop.
The size of matrix D is 37 by 6 when gen = 4 and after iterating 8 times in the inner while loop.
The size of matrix D is 36 by 6 when gen = 4 and after iterating 9 times in the inner while loop.
The size of matrix D is 33 by 6 when gen = 4 and after iterating 10 times in the inner while loop.
The size of matrix D is 32 by 6 when gen = 4 and after iterating 11 times in the inner while loop.
The size of matrix D is 16 by 6 when gen = 4 and after iterating 12 times in the inner while loop.
The size of matrix D is 7 by 6 when gen = 4 and after iterating 13 times in the inner while loop.
The size of matrix D is 6 by 6 when gen = 4 and after iterating 14 times in the inner while loop.
The size of matrix D is 5 by 6 when gen = 4 and after iterating 15 times in the inner while loop.
The size of matrix D is 4 by 6 when gen = 4 and after iterating 16 times in the inner while loop.
The size of matrix D is 3 by 6 when gen = 4 and after iterating 17 times in the inner while loop.
The size of matrix D is 1 by 6 when gen = 4 and after iterating 18 times in the inner while loop.
The size of matrix D is 12 by 6 when gen = 5 and after iterating 1 times in the inner while loop.
The size of matrix D is 11 by 6 when gen = 5 and after iterating 2 times in the inner while loop.
The size of matrix D is 10 by 6 when gen = 5 and after iterating 3 times in the inner while loop.
The size of matrix D is 7 by 6 when gen = 5 and after iterating 4 times in the inner while loop.
The size of matrix D is 3 by 6 when gen = 5 and after iterating 5 times in the inner while loop.
The size of matrix D is 2 by 6 when gen = 5 and after iterating 6 times in the inner while loop.
The size of matrix D is 1 by 6 when gen = 5 and after iterating 7 times in the inner while loop.
The size of matrix D is 4 by 6 when gen = 6 and after iterating 1 times in the inner while loop.
The size of matrix D is 3 by 6 when gen = 6 and after iterating 2 times in the inner while loop.
The size of matrix D is 2 by 6 when gen = 6 and after iterating 3 times in the inner while loop.
The size of matrix D is 1 by 6 when gen = 6 and after iterating 4 times in the inner while loop.
The size of matrix D is 3 by 6 when gen = 7 and after iterating 1 times in the inner while loop.
The size of matrix D is 2 by 6 when gen = 7 and after iterating 2 times in the inner while loop.
The size of matrix D is 1 by 6 when gen = 7 and after iterating 3 times in the inner while loop.
The size of matrix D is 3 by 6 when gen = 8 and after iterating 1 times in the inner while loop.
The size of matrix D is 2 by 6 when gen = 8 and after iterating 2 times in the inner while loop.
The size of matrix D is 0 by 6 when gen = 8 and after iterating 3 times in the inner while loop.
??? Improper assignment with rectangular empty matrix.
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7楼2014-07-05 12:15:45
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7楼: Originally posted by dnp at 2014-07-05 12:15:45
我跟踪了一下你矩阵D的大小，发现你的算法里面矩阵D是不断变小，而且会最终变成一个空的矩阵，自然在用矩阵D里面的元素对F矩阵进行赋值的时候会出错，所以你还是改进一下你的算法，并非matlab或者其他的问题。按照你 ...

有表情的那个命令是：
CODE:
D(t:m,:)=[];

建议最好还是不要用这个方式来改变D矩阵，直接用索引的方法来提取D矩阵里面的元素不论从效率还是理解的角度讲更好~~
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8楼2014-07-05 12:37:36
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