How can i get rows in a multidimensional array to be a new array?

Question

Andre 2013-4-17

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/72474-how-can-i-get-rows-in-a-multidimensional-array-to-be-a-new-array

Hi.

I dealing with a multidimensional array, and is a bit lost. From my multidimensional array below, i want each row to become a own array. So in my case I wish to have 9 arrays, each with dimension 1X4. So that my first array is

16.7938 0.6839 0.3873 0.2771

second is

0 0 0 0

and so on...

I was trying somthing like Gx(m,:,:), but ended up with 3rd row from each page.

Iam getting my array from these for-loops:

for j=1:Q
    for m=1:N
        for n=1:N 
        Gx(m,j,n)=Gu(n,m,j);
          end    
      end
  end

where Q=4 and N=3

Gx
Gx(:,:,1) =
     16.7938    0.6839    0.3873    0.2771
           0         0         0         0
           0         0         0         0
Gx(:,:,2) =
     16.4220    0.0000    0.0000    0.0000
      3.5144    0.6839    0.3873    0.2771
           0         0         0         0
Gx(:,:,3) =
     16.0584    0.0000    0.0000    0.0000
      3.4366    0.0000    0.0000    0.0000
      3.5144    0.6839    0.3873    0.2771

Later iam going to change values for N and Q, so i wish to express my code in a generalized way. With j,m,n if possible.

Any suggestions?

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Answer 1

Sean de Wolski 2013-4-17

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/72474-how-can-i-get-rows-in-a-multidimensional-array-to-be-a-new-array#answer_82597

Why do you want this? It's much easier to just index into your multidimensional array than to have many arrays. Think about how this scales: do you want 1000 separate arrays?

How do I make A1,A2,...An in a loop