Index exceeds matrix dimensions error?

What is the problem? Here is my code:

dirs = {'pos1','pos2','pos3'};
groups = {'unflashed','flashed_1xsett3','flashed_1xsett3_15sec','flashed_1xsett5','flashed_1xsett5_15sec','flashed_2xsett5','flashed_2xsett5_15sec'};
groups_bin = {'0', '1', '2','3','4','5','6','7'};

fprintf('%s\n',['Reading ' base_path]);
for d = 1 : length(dirs)
    fprintf('%s',['\' dirs{d}]);

      for g = 1 : length(groups);
          fprintf('%s',['\' groups{g}]);

          for f = 1 : 1
              for led = 1 : 9
                  fname = ['imageL' num2str(led) '_' num2str(f-1) '.png'];
                  fprintf('%s',['\' fname]);
               try
                  img{d, g, f, led} = imread(fullfile(base_path,person,dirs{d},groups{g},fname));
               catch
                   img{d,g,f,led}=[];
               end
                  fprintf(repmat('\b',1,length(fname)+1));
              end
          end
          fprintf(repmat('\b',1,length(groups{g})+1));

      end
      fprintf(repmat('\b',1,length(dirs{g})+1));

end
fprintf('\n');

Answer 1

[Maria Perdomo]

the line problem is 3 lines before the end:

   fprintf(repmat('\b',1,length(dirs{g})+1));

dirs has just 3 elements, but g reaches up to 7:

 for g = 1 : length(groups);

Answer 2

[matlab12345]

how should i change it? thank you for your help :)

Answer 3

[matlab12345]

oh ok, i should write dirs{d}? right?

[Jan]

Please post comments in the comments section and not as answer. Thanks.

And yes, dirs{d} looks better.

Answer 4

[matlab12345]

thank you :)