remove duplicated rows from a cell array ?

Hi Friends, I have used this piece of code to remove duplicated pairs of rows from a cell array but it produces an error. Could anyone help me to fix it?

cell={' A',' B'; ' C',' D' ;'E','F'; ' B',' A'; ' C',' D'}

Desired_output={'A','B';'C','D';'E','F'}

I update the cell to make it more easy to understand.

Answer 1

[dpb]

Sans the orientation (and not sure you can ensure the data are all symmetric to keep the square array?)

 >> [u,ix,ib]=unique(c);
>> [n,idx]=histc(ib,1:length(u));
>> c(ix(n==1))
ans = 
    'BRCA1'
    'ESF'
    'NBR1'
    'TTN'
>>

NB: Do NOT use 'cell' as variable name; that aliases the builtin cell function which, particularly when you're using cell array specifically could have very bad results. I just use c as a placeholder variable above instead; pick a meaningful but not conflicting name.

Answer 2

[Andrei Bobrov]

cell1 = {'ESF','BRCA1';'ELANE','SLPI';'NBR1','TTN';'SLPI','ELANE'};

[~,~,c]  = unique(cell1);
[~,~,c1] = unique(sort(reshape(c,size(cell1)),2),'rows');
m = max(c1);
[n,~,ii] = histcounts(c1,[1:m,m + 1]);
out = cell1(n == 1,:);

add

cell1={'A','B'; 'C',' D' ;'E','F'; 'B','A'; 'C','D'};

[~,c] = unique(cell1);
[~,b] = unique(sort(reshape(c,size(cell1)),2),'rows');
out = cell1(b,:);

[chocho]

thanks for your help!

I have tried your code and get this error:

Error using max

Not enough input arguments.

[chocho]

@Andrei Bobrov I post more easy example to make clear, plz check my question.

[Andrei Bobrov]

I'm fixed my typo