I can not create a matrix

Question

Muhendisleksi 2017-4-26

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/337360-i-can-not-create-a-matrix

评论： Stephen23 2017-5-5

DNdog =
       7
      11
BNdog =
       4
       4
blnmynokta =
      11
for i = 1:length(DNdog)
    for j = 1:(length(blnmynokta))
        if (BNdog(i) == blnmynokta(j))
            A(i,j) = [1];
        elseif (DNdog(i) == blnmynokta(j)) 
             A(i,j) = [-1];
        end
    end
end
A =  
     0
    -1  % This matrix is formed.

The matrix that should occur is;

2 个评论
显示无隐藏无

Jan 2017-4-26

What exactly is your question?

Muhendisleksi 2017-4-26

在 MATLAB Online 中打开

A =
       0     0     0
       0     0     0
       0     0     0
      -1     0     0
       0    -1     0
       0     0    -1

I have to get this result. But I could not.

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Answer 1

Stephen23 2017-4-26

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/337360-i-can-not-create-a-matrix#answer_264581

编辑：Stephen23 2017-4-26

在 MATLAB Online 中打开

This is simple with toeplitz:

>> nC = 3;
>> nR = 6;
>> vC = zeros(1,nC);
>> vR = zeros(1,nR);
>> vR(end-nC+1) = -1;
>> toeplitz(vR,vC)
ans =
   0   0   0
   0   0   0
   0   0   0
  -1   0   0
   0  -1   0
   0   0  -1

3 个评论
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Muhendisleksi 2017-5-5

在 MATLAB Online 中打开

nC = 6;
nR = 6;
If nC and nR take these values;
A =
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
-1 0 0 1 0 0
0 -1 0 0 1 0
0 0 -1 0 0 1 %How can I get this value?

Stephen23 2017-5-5

@Muhendisleksi: you can solve this yourself quite easily. One way would be to use zeros and toeplitz and concatenate the outputs on top of each other. When you actually read the documentation and try some examples then you will learn how to use MATLAB and you will learn how to solve problems yourself. Start by reading the docs for the two functions that I told you, and experimenting with them.

https://www.mathworks.com/matlabcentral/answers/228557-experts-of-matlab-how-did-you-learn-any-advice-for-beginner-intermediate-users

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