How can I create a 3-d matrix from a 2-d matrix?

My matrix is an 11x14 matrix and I would like to create 2 more "pages" behind the original of the same values for a total of 3 "pages". Is there an efficient way of doing this? This needs to be done for several matrices.

Answer 1

[Image Analyst]

Another way is to use cat(3,...) instead of repmat():

output = cat(3, myMatrix, myMatrix, myMatrix);

or "If I have the A(:,:,2) matrix and want to replicate those values into A(:,:,1) and A(:,:,3),"

A(:,:,1) = A(:,:,2);
A(:,:,3) = A(:,:,2);

[zephyr21]

Thank you so much

Answer 2

[Azzi Abdelmalek]

repmat(A,1,1,3)

[zephyr21]

This did not help. In fact I'm not even sure what this did. Lets say I have an existing 3x3 matrix 'A' of zeros. I would like to repeat that matrix two more times in the k dimension so that I can use the A(:,:,2) matrix to add, subtract, multiply and divide with the A(:,:,1) and A(:,:,3) its sandwiched in between. Thanks

[Azzi Abdelmalek]

It did what you asked

A=zeros(3,3)
B=repmat(A,1,1,3)

[zephyr21]

Thank you! Another question if you don't mind. If I have the A(:,:,2) matrix and want to replicate those values into A(:,:,1) and A(:,:,3), how would I do that?

[Roger Stafford]

What difference does it make if all three levels end up the same?