Sort entire 3D matrix

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Bianca Brisc
Bianca Brisc on 19 Jul 2021
Commented: Bianca Brisc on 19 Jul 2021
I have a 3D matrix: A( 5,5,10). For example if I have:
A(:,:,1) = [ 43 , 432 ,2, 34,3;
323 ,44,1, 9, 7 ]
Can I obtain an output like this:
A(:,:,1) = [ 1,2,3,7,9;
If yes, how? Thanks!

Accepted Answer

Dhruv G
Dhruv G on 19 Jul 2021
You'd have to flatten the matrix into a 1d vector, sort that, then reshape it back to the initial shape. See for how to reshape an array, and for how to sort. The code would be something like:
a = reshape(A, [250,1])
a = sort(a)
A = reshape(a, [5,5,10])
  1 Comment
Bianca Brisc
Bianca Brisc on 19 Jul 2021
Thank you! It is almost how I wanted it.
For the moment the sorted values are column wise, so column1 row1 has minimum value and column1 row2 has the next minimum. I wanted something like: column1 row1 and then column2 row1.
But I think I might be able to work with this.
Thank you!

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