problem occour in Change directory,,,how to remove it..??

??? Error using ==> cd
Cannot CD to D:\RNAi\matlab (Name is nonexistent or not a directory).

Error in ==> roughwfingcvlet at 52
cd D:\RNAi\matlab

Answer 1

[Jan]

The error message tells you, that the program tried to change into a not existing directory. Without seeing the code, it is impossible to guess the reason of this error.

[Swati]

addpath D:\CurveLab-2.1.2\fdct_wrapping_matlab
addpath D:\RNAi\images
numClass = 10;

cvletpath='D:\RNAi\cvfeatures\';  % created the folder first
CDPATH = [' D:\RNAi\images\'];
%cd  D:\RNAi\images

% parameters for Curvelet Transform
is_real=0;
finest =2;
nbscales =5;  %ceil(log2(min(M,N)) - 3)]
nbangles_coarse =16;

fid = fopen('list.txt');
if (fid < 0 )
      error('bad file name');
end

count=0;            
idx = 0;    
while idx < numClass        % subject number
        idx = idx + 1;
        fprintf('Read samples from class %d\n', idx);    
        foldName = fgetl(fid);
        tmpPath = [CDPATH foldName];
%        eval(['cd ' tmpPath]);
        dirList = dir('*.tif');  % for original images

          file_length=length(dirList);  
          for j=1:file_length
               imName = dirList(j).name;     
               if strcmp(imName, 'Thumbs.db')~=1
                    im = imread(imName);
                    C = fdct_wrapping(double(im),is_real, finest, nbscales, nbangles_coarse); 
                    X=[];
                    for s=1:length(C)  %6
                        for w=1:length(C{s})
                            tmp = abs(C{s}{w});
                            m = mean(mean(tmp));
                            v= std2(tmp);
                            X = [X m v ];
                        end
                    end
                    cvletname = [cvletpath  ddeblank(foldName) '\'  regexprep(imName, '.tif', '.mat')];
                    eval(['save '  cvletname  '  X;'])   

            end
          end
  end
  fclose('all');
  cd D:\RNAi\matlab

return

This one is the req code gives at 52

[Jan]

The message ist still clear: The Folder "D:\RNAi\matlab" does not exist. So create it manually in the Windows Explorer or use mkdir.

By the way: eval is evil. Better use:

save(cvletname, 'X');