find how many times same element is repeated

A=[9,8;7,6;1,2;2,4;3,4;3,4;4,7;6,7;8,6;9,8;7,6];
a = sort(unique(A,'rows'),2);

a is [1,2;2,4;3,4;4,7;6,7;6,7;6,8;8,9];

I want to get how many times same element is repeated,

[1,2] repeated 1,[2,4] repeated 1, [3,4] repeated 2, [1,2] repeated 1, [4,7] repeated 1, [6,7] repeated 2

[madhan ravi]

Note you have a mistake in your desired result 6,7 has repeated once and 7,6 has repeated twice.

Answer 1

[madhan ravi]

A=[9,8;7,6;1,2;2,4;3,4;3,4;4,7;6,7;8,6;9,8;7,6];
a = unique(A,'rows');
R = zeros(size(a,1),1);
for k = 1:size(a,1)
    R(k) = nnz(ismember(A,a(k,:),'rows'));
end
Result = table(a,R,'VariableNames',{'Rows','Times'})

Gives:

Result =

  8×2 table

     Rows     Times
    ______    _____

    1    2      1  
    2    4      1  
    3    4      2  
    4    7      1  
    6    7      1  
    7    6      2  
    8    6      1  
    9    8      2  

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