清空筛选条件
清空筛选条件

create cell array by extracting all the same row from multiple matrix

1 次查看（过去 30 天）
Katherine Zheng
Katherine Zheng 2022-9-28
评论： Stephen23 2022-10-1
I have three double A = [105x3]; B = [105x3]; C = [105x3]; I want to create a cell array D = {105 cells} each cells contains the corresponding rows from A B C.
For example,
D {1} = [
A(1,:);
B(1,:);
C(1,:);]
each row from A B C are in different rows in D
Is this achievable through cellfun?

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2022-9-28
Ran in:
"Is this achievable through cellfun?"
Yes:
A = rand(105,3);
B = rand(105,3);
C = rand(105,3);
D = cellfun(@vertcat,num2cell(A,2),num2cell(B,2),num2cell(C,2), 'uni',0)
D = 105×1 cell array
{3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double} {3×3 double}
But most likely you should be using ND arrays rather than concatenating & splitting data like that.
  2 个评论
Katherine Zheng
Katherine Zheng 2022-9-28
Hi @Stephen23 thank you very much. That's exactally what I want. But I am not sure I understand the 'using ND arrays' in your suggestion. Could you possibly explain a bit? Many thanks.

请先登录，再进行评论。

更多回答（1 个）

KSSV
KSSV 2022-9-28
编辑：KSSV 2022-9-28
D = cell(105,5) ;
for i = 1:105
D{i} = [A(i,:) B(i,:) C(i,:)] ;
end
Or
D = [A B C] ;
D = num2cell(D,2) ;

类别

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

标签

产品


版本

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by