How can i find an eleiment which comes only one in a matrix ?????

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Example
A=[1 2;1 3;1 4;1 5;2 4]
Ans should be [3 5]

Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 22 Jun 2016
Edited: Azzi Abdelmalek on 22 Jun 2016
A=[1 2;1 3;1 4;1 5;2 4]
[ii,jj,kk]=unique(A)
b=accumarray(kk,(1:numel(kk))',[],@numel)
out=ii(b==1)

More Answers (1)

Jos (10584)
Jos (10584) on 24 Jun 2016
When A only contains positive integers:
A = [1 2 3 1 2 4 1 2 4 5]
B = find(sparse(A(:),1,1)==1)

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