Reshape a multidimensional matrix
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i have a multidimensional matrix (146x146x144) that i want to reshape (144x21316). the command reshape works "vertically", how i can reshape "horizontally" ( every rows next to another)
Answers (2)
madhan ravi
on 23 Sep 2020
Edited: madhan ravi
on 23 Sep 2020
reshape(permute(matrix, [3, 2, 1]), 144, [ ])
9 Comments
elena galvano
on 23 Sep 2020
madhan ravi
on 23 Sep 2020
Edited: madhan ravi
on 23 Sep 2020
m(:, :, 1) = [1:2;3:4];
m(:, :, 2) = [5:6;7:8];
What should be the result for the above matrix?
elena galvano
on 23 Sep 2020
madhan ravi
on 23 Sep 2020
Respond to my comment.
elena galvano
on 23 Sep 2020
madhan ravi
on 23 Sep 2020
Edited: madhan ravi
on 23 Sep 2020
Do you know what a 3D matrix is ? The one you showed is not that , in fact I don’t know if it’s 1D, 2D , 3D or MD? When I pasted the example that you gave in MATLAB, it shows an error. Help us to help you.
elena galvano
on 23 Sep 2020
madhan ravi
on 23 Sep 2020
Edited: madhan ravi
on 23 Sep 2020
https://www.mathworks.com/matlabcentral/answers/598396-reshape-a-multidimensional-matrix#comment_1020766 Once again. What would be the result be for that matrix?
reshape(permute(matrix, [2, 1, 3]), 144, []).'
Steven Lord
on 23 Sep 2020
for examplei have a matrix
[ 1 1 1 1 1 1 1 1 1
2 2 2 2 2 2 2 2 2
3 3 3 3 3 3 3 3 3 3]
That has one too many 3's in the last row. Correcting that problem:
A = [ 1 1 1 1 1 1 1 1 1;
2 2 2 2 2 2 2 2 2;
3 3 3 3 3 3 3 3 3];
P = reshape(A.', 1, [])
If your A array is actually a 3-dimensional (or generally N-dimensional for N > 2) you're going to want to use permute instead of the .' operator.
P2 = reshape(permute(A, [2 1]), 1, [])
To ask a similar question that madhan ravi did, for this specific array:
B = reshape(1:24, [2 3 4])
What exactly do you want the result of reshaping B to be? Give us the explicit command to create Breshaped:
Breshaped = [ % Fill in numbers here]
Once we know what you want Breshaped to be we can help you write the command to create it.
KSSV
on 23 Sep 2020
iwant = reshape(144,[]) ;
Wont this work for you?
1 Comment
elena galvano
on 23 Sep 2020
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