MATLAB: A problem about sprintf, array and concetnation

arrayconcatenationMATLABsprintf

i need a hope about this code, there's a mistake but i just can't figured it out..
i need the result:
out2=
[SemenPadang vs persiwa, SemenPadang vs persipura, PSPS vs ... SemenPadang,  bye, Persisam vs semen padang;
PSPS vs Persipura, PSPS vs Persiwa, PSPS vs SemenPadang, bye, ...   
BontangFc vs PSPS ]
teams = {'SemenPadang','PSPS','Sriwijaya','Persija','PelitaJaya','Persib','Persijap','Persibo','Arema','Persema','Persela','Deltras','Persiba','PSM','BontangFC','Persisam','Persiwa','Persipura'};
out2 =
[17  18  -2   0  -3  -4   5   6  -7  -8   9  10  -11  -12  13  14   -15   -16;
18  17   1   0  -4  -3   6   5  -8  -7  10  9 -12 -11  14  13  -16   -15 ]
ab = cat(2, teams, teams);
[brs, klm]= size(out2);
for b2= 1:brs
      for k2= 1:klm
          if out2(b2, k2) > 0
              out2(b2, k2)= sprintf('%s vs %s\n', ab{b2}, ab{abs(out2(b2, k2))}); % when out2 is positive,   
          elseif out2(b2, k2) < 0
              out2(b2, k2)= sprintf('%s vs %s\n', ab{abs(out2(b2, k2))}, ab{b2}); % it work's on single elements
          else
              out2(b2, k2)= sprintf('bye');
          end
      end
  end
thx for attention and guidance..

Best Answer

sprintf() results in strings, which are character arrays. You cannot store an entire character array into a single location of a numeric array such as out2. In order to store a character array into a location designated with just two subscripts, you have to be storing into a cell array, such as
out3{b2, k2} = sprintf('%s vs %s\n', ab{abs(out2(b2, k2))}, ab{b2});
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