Concatenate arrays in loop

Hi!

I have arrays of different length (length is different within each loop)

and I want to add the number of loop as the third dimension of each array. I used B(:,:,i)= B

What I get is B(:,:,1) = B @last loop (where i=4)

B(:,:,2) = 0 @second loop (where i=2)

B(:,:,3) = 0 @third loop (where i=3)

B(:,:,4) = B @last loop (where i=4)

What I want is B(:,:,1) = B @first loop (where i=1)

B(:,:,2) = B @second loop (where i=2)

until end of loop

I would highly appreciate if someone has a straighforward answer and can help, please!

for i = 1:4
%table of data different length*20 column
dim = data(data.TC_Counter3 == i,:);

%B is array of different lenghth*20
B = table2array(dim);
B(:,:,i)= B;

end

Answer 1

[madhan ravi]

Save it as a cell instead of a 3D matrix since you say they are of different lengths.

[Mahla Bakhshi]

Thanks for the answer! I tried that, but still I get the same output.

[madhan ravi]

 B = cell(5, 1);
 for ii = 1:5
 dim =  data(data.TC_Counter3 == ii, :);
 B{ii} = table2array(dim);
 end
celldisp(B)

[Mahla Bakhshi]

Thanks!