find unique array cell with 2 field

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Luca Re
Luca Re 2024-10-13
编辑： Matt J 2024-10-13
Ran in:
load('matlab_f.mat')
f
f = 4x2 cell array
{'a'} {'1'} {'a'} {'1'} {'c'} {'2'} {'c'} {'1'}
i want to find row equal
f(1.:) and f(2,:) are equal
f(3.:) and f(4,:) are not equal

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采纳的回答

Matt J
Matt J 2024-10-13
>> findgroups(f(:,1),f(:,2))
ans =
1
1
3
2
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Luca Re
Luca Re 2024-10-13
thank but if i want to delete duplicate..can i do it?
can I search for the same pairs and delete one of these or is there a faster method
Matt J
Matt J 2024-10-13
编辑：Matt J 2024-10-13
I demonstrated how to do that in my other answer.
Ultimately, you should probably convert your data and leave it in table form. The things you are asking are very readily done with the data in that form.

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更多回答（2 个）

Matt J
Matt J 2024-10-13
编辑：Matt J 2024-10-13
Ran in:
load('matlab_f.mat')
table2cell(unique(cell2table(f),'rows'))
ans = 3x2 cell array
{'a'} {'1'} {'c'} {'1'} {'c'} {'2'}
Sameer
Sameer 2024-10-13
编辑：Sameer 2024-10-13
Ran in:
Hi Luca
To compare rows of a cell array and determine if they are equal, you can use the "isequal" function.
Here's how you can do it:
load('matlab_f.mat')
% Check if the first and second rows are equal
if isequal(f(1,:), f(2,:))
disp('f(1,:) and f(2,:) are equal');
else
disp('f(1,:) and f(2,:) are not equal');
end
f(1,:) and f(2,:) are equal
% Check if the third and fourth rows are equal
if isequal(f(3,:), f(4,:))
disp('f(3,:) and f(4,:) are equal');
else
disp('f(3,:) and f(4,:) are not equal');
end
f(3,:) and f(4,:) are not equal
Please refer to the below MathWorks documentation link:
https://www.mathworks.com/help/matlab/ref/double.isequal.html
Hope this helps!

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