Concatenate cell array in matlab

조회 수: 830 (최근 30일)
Yash Khandelwal
Yash Khandelwal 2022년 7월 13일
편집: Stephen23 2022년 7월 14일
In Matlab you can concatenate arrays by saying -
How do you do something similar with a cell array?
The code above keeps on nesting cells within cells. I just want to append elements to the cell array. How do I achieve this?
  댓글 수: 1
Stephen23 2022년 7월 14일
편집: Stephen23 2022년 7월 14일
"In Matlab you can concatenate arrays by saying "
Yes, and the square bracket concatenation operator works with all types of array, not just numeric ones. Lets try:
[1,2,pi] % concatenate scalars
C1 = {1,'cat'};
C2 = {2,'hat'};
[C1;C2] % concatenate cell arrays
ans = 2×2 cell array
{[1]} {'cat'} {[2]} {'hat'}
T1 = cell2table(C1,'VariableNames',{'A','B'});
T2 = cell2table(C2,'VariableNames',{'A','B'});
[T1;T2] % concatenate tables
ans = 2×2 table
A B _ _______ 1 {'cat'} 2 {'hat'}
S1 = string(C1);
S2 = string(C2);
[S1;S2] % concatenate strings
ans = 2×2 string array
"1" "cat" "2" "hat"
... etc etc.
In contrast, using {} is not a concatenation operator, it creates a cell array. So when you used {a,'abc'} you told MATLAB to create a new cell array containing those arrays.

댓글을 달려면 로그인하십시오.

채택된 답변

Anay Aggarwal
Anay Aggarwal 2022년 7월 13일
편집: Anay Aggarwal 2022년 7월 13일
Hi Yash
I have an understanding that you want to concatenate array.
If a and b are cell arrays, then you concatenate them in the same way you concatenate other arrays: using []:
>> a={1,'f'}
a =
1×2 cell array
{[1]} {'f'}
>> b={'q',5}
b =
1×2 cell array
{'q'} {[5]}
>> [a,b]
ans =
1×4 cell array
{[1]} {'f'} {'q'} {[5]}
To append a single element, you can do a{end+1}=1 or a(end+1)={1}.
Hope this helps

추가 답변 (0개)


Help CenterFile Exchange에서 Creating and Concatenating Matrices에 대해 자세히 알아보기


Community Treasure Hunt

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

Start Hunting!

Translated by