convert string to cell array

I have a for loop that gives results that are constantly updating

x= 'A'

x= 'B'

x= 'C'

But I would like to convert that into x= {'A', 'B', 'C'}

Any Suggestions?

Answer 1

[Thorsten]

 clear x
 x{1} = 'A';
 x{end+2} = 'B';
 x{end+3} = 'C';

and so on

[chlor thanks]

but I have hundred of these and is there a way I can do this in one command?

[Walter Roberson]

No. There is no way to give a command along the lines of "collect all of the values that were generated for X into a cell array. You need to put them into the cell array at the time you generate them (or at least before X changes). For example you might have

   for K = 1 : 50
      r = rand();
      if r < 0.3
        X = 'A';
      elseif r < 0.38
        X = 'B';
      elseif r < 0.92
        X = 'C';
      else
        X = 'D';
      end
      X_vals{K} = X;
    end

[chlor thanks]

This is what I have been working on, I am trying to make the last line AllExcel into a cell array but it did not come out right... I have a result of AllExcel that is constantly updating and I am not really sure how to fix it. Will you able to help me on this? Much appreciated!

for k = 1 : numFolders  
    SubFolder = listOfFolderNames{k};
    filePattern = fullfile(SubFolder, '*.xls*');
    ExcelFiles = dir(filePattern);
    if ~isempty(ExcelFiles)
      for k2 = 1 : length(ExcelFiles)
                AllExcel={ExcelFiles(k2).name}
      end
    end
  end

[Walter Roberson]

numfiles = 0;
for k = 1 : numFolders  
  SubFolder = listOfFolderNames{k};
  filePattern = fullfile(SubFolder, '*.xls*');
  ExcelFiles = dir(filePattern);
  if ~isempty(ExcelFiles)
    for k2 = 1 : length(ExcelFiles)
                  numfiles = numfiles + 1;
              AllExcel{numfiles} = fullfile(SubFolder, ExcelFiles(k2).name);
    end
  end
end

However, what I would do instead is look in the File Exchange for https://www.mathworks.com/matlabcentral/fileexchange/19550-recursive-directory-listing or https://www.mathworks.com/matlabcentral/fileexchange/32226-recursive-directory-listing-enhanced-rdir