matrix as desired data using for loop

Question

MUKESH KUMAR 2018-1-10

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/376437-matrix-as-desired-data-using-for-loop

评论： MUKESH KUMAR 2018-1-10

采纳的回答： Stephen23

在 MATLAB Online 中打开

suppose I had following matrix A

A(1,:)=[10 10 0.2 0 0]; A(2,:)=[10 10 10 0.3 0]; A(3,:)=[10 0.5 0 0 0];

Now I want a cell array B like this

B= [{5*5};{5*5};{5*5}];

like

B(1)=[10 10 0.2 0 0;0 10 10 0.2 0;0 0 10 10 0.2;0.2 0 0 10 10;10 0.2 0 0 10]

similarly create

 B(2)=[[10 10 10 0.3 0;0 10 10 10 0.3;03 0 10 10 10;10 0.3 0 10 10;10 10 0.3 0 10]

and B(3) also.

thanks

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Answer 1

Stephen23 2018-1-10

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/376437-matrix-as-desired-data-using-for-loop#answer_299438

编辑：Stephen23 2018-1-10

在 MATLAB Online 中打开

In just two lines (could easily be written in one line):

>> A = [10,10,0.2,0,0;10,10,10,0.3,0;10,0.5,0,0,0];
>> fun = @(v)toeplitz(v(1,[1,end:-1:2]),v(1,:));
>> B = cellfun(fun,num2cell(A,2),'uni',0);
>> B{:}
ans =
   10.00000   10.00000    0.20000    0.00000    0.00000
    0.00000   10.00000   10.00000    0.20000    0.00000
    0.00000    0.00000   10.00000   10.00000    0.20000
    0.20000    0.00000    0.00000   10.00000   10.00000
   10.00000    0.20000    0.00000    0.00000   10.00000
ans =
   10.00000   10.00000   10.00000    0.30000    0.00000
    0.00000   10.00000   10.00000   10.00000    0.30000
    0.30000    0.00000   10.00000   10.00000   10.00000
   10.00000    0.30000    0.00000   10.00000   10.00000
   10.00000   10.00000    0.30000    0.00000   10.00000
ans =
   10.00000    0.50000    0.00000    0.00000    0.00000
    0.00000   10.00000    0.50000    0.00000    0.00000
    0.00000    0.00000   10.00000    0.50000    0.00000
    0.00000    0.00000    0.00000   10.00000    0.50000
    0.50000    0.00000    0.00000    0.00000   10.00000