extracting 2D array from 4D array in matlab

Question

I have a 4D array in matlab something like this,

test(:,:,1,1) =

     0


test(:,:,2,1) =

     0


test(:,:,3,1) =

     0


test(:,:,4,1) =

     0


test(:,:,5,1) =

     0


test(:,:,1,2) =

     0


test(:,:,2,2) =

     0


test(:,:,3,2) =

     0


test(:,:,4,2) =

     0


test(:,:,5,2) =

     0


test(:,:,1,3) =

     0


test(:,:,2,3) =

     0


test(:,:,3,3) =

     0


test(:,:,4,3) =

     0


test(:,:,5,3) =

     0


test(:,:,1,4) =

     0


test(:,:,2,4) =

     0


test(:,:,3,4) =

     0


test(:,:,4,4) =

     0


test(:,:,5,4) =

     0


test(:,:,1,5) =

     0


test(:,:,2,5) =

     0


test(:,:,3,5) =

     0


test(:,:,4,5) =

     0


test(:,:,5,5) =

     0

K>> test

test(:,:,1,1) =

     0


test(:,:,2,1) =

     0


test(:,:,3,1) =

     0


test(:,:,4,1) =

     0


test(:,:,5,1) =

     0


test(:,:,1,2) =

     0


test(:,:,2,2) =

     0


test(:,:,3,2) =

     0


test(:,:,4,2) =

     0


test(:,:,5,2) =

     0


test(:,:,1,3) =

     0


test(:,:,2,3) =

     0


test(:,:,3,3) =

     0


test(:,:,4,3) =

     0


test(:,:,5,3) =

     0


test(:,:,1,4) =

     0


test(:,:,2,4) =

     0


test(:,:,3,4) =

     0


test(:,:,4,4) =

     0


test(:,:,5,4) =

     0


test(:,:,1,5) =

     0


test(:,:,2,5) =

     0


test(:,:,3,5) =

     0


test(:,:,4,5) =

     0


test(:,:,5,5) =

     0

Now I want to get an array, something like this

ans =

     0     0     0     0
     0     0     0     0
     0     0     0     0
     0     0     0     0
     0     0     0     0

Is there a simple way to convert the dimentions. I am very much new to multidimensional arrays in Matlab. Please let me know if anyone knows of any solution.

@Daniel Alright. Apologies to all. I'll delete my comments. – jub0bs Feb 05 '16 at 14:05 — jub0bs, Feb 05 '16 at 14:05

score 1 · Accepted Answer · answered Feb 05 '16 at 13:52

1

Use the squeeze function, it will return a matrix of size [5 4] when you input a matrix of size [1 1 5 4]

answered Feb 05 '16 at 13:52

Daniel

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Thanks for the answer. Let me know if you happen to know the same modification with the help of reshape command, that would be one more help. Regards – cppiscute Feb 05 '16 at 14:08
If you take a look at the question marked as duplicate (top of this page) you can find an example in one of the answers. – Daniel Feb 05 '16 at 14:09

extracting 2D array from 4D array in matlab

1 Answers1