omit same element inside cell

Question

NA 2019-4-3

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/454139-omit-same-element-inside-cell

评论： NA 2019-4-3

A={[1,2,3,4],[4,2,3],[1,2,5,6,78,9],[1,2,3,4],[1,2,5,6,78,9],[4,2,3],[5,6,7]};
c=cellfun(@(x) unique(x),A,'UniformOutput',false);

I want to omit same array inside cell

result should be

A={[1,2,3,4],[4,2,3],[1,2,5,6,78,9],[5,6,7]};

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madhan ravi 2019-4-3

?? [4,2,3] & [5,6,7] have the same size there is something wrong in your logic or your explanation

NA 2019-4-3

Sorry I mean same array

[4,2,3] repeated 2 times

[1,2,3,4] repeated 2 times

[1,2,5,6,78,9] repeated 2 times

I want to have them one times

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Answer 1

Stephen23 2019-4-3

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链接

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https://ww2.mathworks.cn/matlabcentral/answers/454139-omit-same-element-inside-cell#answer_368831

编辑：Stephen23 2019-4-3

在 MATLAB Online 中打开

>> A = {[1,2,3,4],[4,2,3],[1,2,5,6,78,9],[1,2,3,4],[1,2,5,6,78,9],[4,2,3],[5,6,7]};
>> N = numel(A);
>> X = false(N,N); % find which arrays are the same:
>> for ii=1:N, for jj=1:ii, X(ii,jj)=isequal(A{ii},A{jj}); end, end
>> Y = X & cumsum(X,1)==1 & cumsum(X,2)==1; % indices that ignore duplicates.
>> Z = A(any(Y,1));
>> Z{:}
ans =
     1     2     3     4
ans =
     4     2     3
ans =
     1     2     5     6    78     9
ans =
     5     6     7

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Answer 2

Jos (10584) 2019-4-3

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/454139-omit-same-element-inside-cell#answer_368835

在 MATLAB Online 中打开

You can convert the elements of each cell to a char array and apply unique on that cell array of chars.

A = {[1,2,3,4],[4,2,3],[1,2,5,6,78,9],[1,2,3,4],[1,2,5,6,78,9],[4,2,3],[5,6,7]};
% engine
[~,ix] = unique(cellfun(@(x) num2str(x), A ,'un', 0), 'stable') ;
B = A(ix) % as requested