qickyly change 3D matrix to 2D matrix

1 次查看（过去 30 天）
Shan Chu
Shan Chu 2017-2-16
回答： Rahul Kalampattel 2017-2-16
Hi, This might be such a silly question but could anyone please help? I get a 3D matrix A(n,m,k) so I want to take the value a(:,1)=A(1,1,:). But Matlab doesn't allow me to do that. Is using "for" loop the only way to do that?

请先登录，再回答此问题。

采纳的回答

Roger Stafford
Roger Stafford 2017-2-16
编辑：Roger Stafford 2017-2-16
You could accomplish that with:
a = reshape(permute(A,[3,1,2]),size(A,3),[]);
[Note: You really haven’t specified how the first two dimensions in A should be arranged in the single second dimension of a. Here I have taken the default arrangement.]

更多回答（1 个）

Rahul Kalampattel
Rahul Kalampattel 2017-2-16
For the example you gave, the following also works:
a=squeeze(A(1,1,:));

类别

在 Help Center 和 File Exchange 中查找有关 Matrix Indexing 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