MATLAB: Unique values inside a matrix

matrixunique

Hello,
Assuming i have a matrix like this m=
1 30
1 20
1 20
1 20
2 30
2 28
2 28
… …
i want it to be like this:
1 30
1 20
2 30
2 28
PS: THE MATRIX IS HUGE CONSISTING OF 11000 ROWS AND 9 COLUMNS
unique is not working since it has it's taking a unique value of all, for example if i apply it for the second column it will take 28 for 1 and not for 2
thank you in advance

Best Answer

Try this: 
A = [1  30
     1  20
     1  20
     1  20
     2  30
     2  28
     2  28];
Out = unique(A, 'rows', 'stable')
producing: 
Out =
     1    30
     1    20
     2    30
     2    28
Experiment to get different results.
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