How to remove rows or Cols in MATLAB?

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Ronak
Ronak on 22 Feb 2021
Commented: Ronak on 22 Feb 2021
I have a Matrix (A) of dimension 501*502*38. How can I make it 501*502*37?

Answers (2)

M.B
M.B on 22 Feb 2021
Let A be your matrix. You can remove the last 2D matrix like this:
A(:, :, 38) = [];
Replace "38" by the index of the 2D matrix you want to remove.

Bob Thompson
Bob Thompson on 22 Feb 2021
You can remove a section of an array in MATLAB by redefining the array without that specified section. For your example, of you don't want the last 'sheet' use the following:
A = A(:,:,1:end-1);
If you want to get rid of a specific sheet use the following:
s = 23; % Specific sheet number, adjust as desired
A = A(:,:,[1:s-1,s+1:end]);
  2 Comments
Bob Thompson
Bob Thompson on 22 Feb 2021
Mr. B's answer also works, and may be easier.
Ronak
Ronak on 22 Feb 2021
Thank you so much! It was really helpful.

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