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

1 次查看（过去 30 天）
zephyr21
zephyr21 2016-6-12
评论： zephyr21 2016-6-13
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.

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2016-6-13
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);

更多回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2016-6-12
repmat(A,1,1,3)
  4 个评论
显示 2更早的评论
zephyr21
zephyr21 2016-6-13
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
Roger Stafford 2016-6-13
What difference does it make if all three levels end up the same?

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Resizing and Reshaping Matrices 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by