cell array for loop assignment

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Wang Jack
Wang Jack 2020-5-12
移动：Dyuman Joshi 2025-9-10
Here is some code
A1 is a 1*4cell array, I want got a 2*4 cell array, but non of those statement can do,
all I got is nesting cell array
anyone any idear?
A2={};
A1={rand(10,2),rand(10,2),rand(10,2),rand(10,2);}
for i=1:4
A2={A2;mat2cell(A{i},[5,5],2)};
A3{i}=mat2cell(A{i},[5,5],2);
A4{:,i}=mat2cell(A{i},[5,5],2);
A5{1,i}=mat2cell(A{i},[5,5],2);
end
A2={};
A={rand(10,2),rand(10,2),rand(10,2),rand(10,2),};
for i=1:4
A2={A2;mat2cell(A{i},[5,5])};
A3{i}=mat2cell(A{i},[5,5]);
A4{:,i}=mat2cell(A{i},[5,5]);
A5{1,i}=mat2cell(A{i},[5,5]);
end
  1 个评论
Prateek Rai
Prateek Rai 2020-6-18
As per my understanding, you are having a 1*4 cell array from which you want to get 2*4 cell array
You can do this by the following sample code :
Here is a sample code :
A2=cell(2,4);
A={rand(10,2),rand(10,2),rand(10,2),rand(10,2);}
for i=1:4
A2{1,i}=A{i};
A2{2,i}=[5,5]; % fill the data of your interest in new column
end
You can refer to the following documentation for more details .
https://www.mathworks.com/help/matlab/ref/cell.html

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采纳的回答

Voss
Voss 2023-11-14
Ran in:
A = {rand(10,2),rand(10,2),rand(10,2),rand(10,2)}
A = 1×4 cell array
{10×2 double} {10×2 double} {10×2 double} {10×2 double}
nA = numel(A);
result = cell(2,nA);
for ii = 1:nA
result(:,ii) = {A{ii}(1:end/2,:); A{ii}(end/2+1:end,:)};
end
disp(result);
{5×2 double} {5×2 double} {5×2 double} {5×2 double} {5×2 double} {5×2 double} {5×2 double} {5×2 double}

更多回答（1 个）

Dyuman Joshi
Dyuman Joshi 2023-11-14
移动：Dyuman Joshi 2025-9-10
Ran in:
An approach without loops -
A = {rand(10,2),rand(10,2),rand(10,2),rand(10,2)}
A = 1×4 cell array
{10×2 double} {10×2 double} {10×2 double} {10×2 double}
B = horzcat(A{:})
B = 10×8
0.1565 0.9521 0.7572 0.6869 0.7378 0.4813 0.8155 0.1594 0.2282 0.4625 0.9511 0.7689 0.4404 0.3185 0.4336 0.3613 0.6424 0.8441 0.7075 0.3435 0.3700 0.1041 0.1690 0.1084 0.6138 0.8827 0.8309 0.5593 0.5412 0.0326 0.1012 0.4879 0.1479 0.5416 0.4597 0.4603 0.7875 0.3722 0.5623 0.9909 0.4484 0.7419 0.6389 0.5388 0.0598 0.4542 0.5955 0.8836 0.2918 0.5863 0.5799 0.5679 0.5118 0.8944 0.6441 0.8400 0.0530 0.5036 0.4431 0.2935 0.1843 0.4312 0.3931 0.4805 0.3789 0.1006 0.3056 0.5012 0.3816 0.1229 0.2707 0.2895 0.2958 0.3525 0.5879 0.4889 0.8968 0.5852 0.2676 0.3825
C = mat2cell(B, [5 5], [2 2 2 2])
C = 2×4 cell array
{5×2 double} {5×2 double} {5×2 double} {5×2 double} {5×2 double} {5×2 double} {5×2 double} {5×2 double}
%For verification
C{1}
ans = 5×2
0.1565 0.9521 0.2282 0.4625 0.6424 0.8441 0.6138 0.8827 0.1479 0.5416

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