MATLAB: How to store values in second column of cell array

cell array reshape

In the following program, I get the value 200 X 1 after reshaping function, I want to store ground truth a label like 1 1 1 1 1 for the first five images then second 2 2 2 2 2 up to 40 images e.g.
 1600x1 uint8     1
 1600x1 uint8     1
 1600x1 uint8     1
 1600x1 uint8     1
 1600x1 uint8     1
 1600x1 uint8     2
 1600x1 uint8     2
 1600x1 uint8     2
 1600x1 uint8     2
 1600x1 uint8     2
 .
 .
 1600x1 uint8     40
 1600x1 uint8     40
 1600x1 uint8     40
 1600x1 uint8     40
 1600x1 uint8     40
 clc;
 clear all;
 faceData = cell(40,5); % or cell(5,40)
 for i=1:40
    cd(strcat('s',num2str(i)));
  for j=1:5
       v=imread(strcat(num2str(j),'.bmp'));       
      v1 = imresize(v,[40,40]);
      [x1,y1] = size(v1);
      v1=v1(:);                                                    % it make long vertical vector
     w = uint8(v1);
     faceData{i,j} = w;                                         
  end
    cd ..
 end
 faceData = reshape(faceData,[],1);

Best Answer

   for i=1:1:length(faceData)
       faceData{i,2}=ceil(i/5);
   end
Add the code above to the below of your code.
Kindly accept my answer if it is working for you.
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