How to find mode between two columns?

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Sandy 2013-7-9

I have two variables . They are each in a column. I want to find the most common pairs between the two columns.

In this case my most common pair would be 12, 13.

How can I do this?

dpb 2013-7-9

MATL
[u,~,c] = unique(a,'rows');
[~,ix]=max(accumarray(c,1));
mdrows=u(ix,:);

Encapsulate in function for general use.

Sandy 2013-7-10

编辑：Sandy 2013-7-10

Works perfectly! Thanks!

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