how to find unique rows in cell array in matlab

hi.. how to find the unique rows for the following cell array:

levelx=

      'GO:0016787'    'GO:0006412'    'GO:0030533'
      'GO:0008150'    'GO:0006412'    'GO:0030533'
      'GO:0006810'    'GO:0006412'    'GO:0030533'
      'GO:0016787'    'GO:0006412'    'GO:0030533'
      'GO:0008150'    'GO:0006412'    'GO:0030533'
      'GO:0006810'    'GO:0006412'    'GO:0030533'
      'GO:0016787'    'GO:0006412'    'GO:0030533'
      'GO:0008150'    'GO:0006412'    'GO:0030533'
      'GO:0006810'    'GO:0006412'    'GO:0030533'
      'GO:0016787'    'GO:0006412'    'GO:0030533'
      'GO:0008150'    'GO:0006412'    'GO:0030533'
      'GO:0006810'    'GO:0006412'    'GO:0030533'
      'GO:0016787'    'GO:0006412'    'GO:0030533'
      'GO:0008150'    'GO:0006412'    'GO:0030533'
      'GO:0006810'    'GO:0006412'    'GO:0030533'
      'GO:0016787'    'GO:0006412'    'GO:0030533'
      'GO:0008150'    'GO:0006412'    'GO:0030533'
      'GO:0006810'    'GO:0006412'    'GO:0030533'
      'GO:0016787'    'GO:0006412'    'GO:0030533'
      'GO:0008150'    'GO:0006412'    'GO:0030533'
      'GO:0006810'    'GO:0006412'    'GO:0030533'
      'GO:0016787'    'GO:0006412'    'GO:0030533'
      'GO:0008150'    'GO:0006412'    'GO:0030533'
      'GO:0006810'    'GO:0006412'    'GO:0030533'
      'GO:0016787'    'GO:0006412'    'GO:0030533'
      'GO:0008150'    'GO:0006412'    'GO:0030533'
      'GO:0006810'    'GO:0006412'    'GO:0030533'
      'GO:0016787'    'GO:0006412'    'GO:0030533'
      'GO:0008150'    'GO:0006412'    'GO:0030533'
      'GO:0006810'    'GO:0006412'    'GO:0030533'

Answer 1

[Matt J]

unique(cell2mat(levelx),'rows')

[Jwana]

thank you for your response .. but how can I return them again to cell ?? because it shows like this:

GO:0006810GO:0005215GO:0030533 GO:0006810GO:0006412GO:0030533 GO:0008150GO:0005215GO:0030533 GO:0008150GO:0006412GO:0030533 GO:0008150GO:0006810GO:0003774 GO:0008150GO:0006810GO:0005215 GO:0008150GO:0006810GO:0006412 GO:0008150GO:0006810GO:0030533 GO:0008150GO:0016787GO:0005215 GO:0008150GO:0016787GO:0006412 GO:0016787GO:0005215GO:0030533 GO:0016787GO:0006412GO:0030533

[Matt J]

[~,idx]=unique(cell2mat(levelx),'rows');

unique_levelx =  levelx(idx,:);

Answer 2

[Jim Hokanson]

The solution above works since the contents concatenate into a hyperrectangle. Put more plainly, in this case, the solution works since all the entries are the same size.

A more general solution can be found at my FEX submission: 25917: Unique Rows for a Cell Array

Answer 3

[Andreas Thealnder Bertelsen]

For unstructured data use table.

pairs{1,1} = '02-Target-180814_1800.wav';

pairs{1,2} = 1525;

pairs{2,1} = '02-Target-180814_1800.wav';

pairs{2,2} = 1563;

pairs{3,1} = '02-Target-180814_1800.wav';

pairs{3,2} = 1525;

table2cell(unique(cell2table(pairs)))