Count the number of the same rows in array

I have array A and I want to count number of occurence the same rows in array

A=[ 44444; 66666; 44444; 88888; 44444; 66666]

Result should be like output.

output:

44444 3

66666 2

88888 1

As you can see row 44444 occured 3 times in array A,66666 2 times and 88888 one time.

The best will be use only matlab function instead of loops.

Answer 1

[Star Strider]

Try this:

A=[ 44444; 66666; 44444; 88888; 44444; 66666];

[Au,~,ic] = unique(A, 'stable');
tally = accumarray(ic, 1);
Result = [Au tally]

Result =
       44444           3
       66666           2
       88888           1

The unique function finds the unique value and returns a vector (here ‘ic’) that are the indices of the unique values in ‘A’. The accumarray function counts and produces as output a vector of the number of occurrences of the unique values. The ‘Result’ matrix horizontally concatenates the unique values and the ‘tally’ vector.