Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.

I'm trying to read a matrix from file, but my code works only if matrix is 3*3. So, if I make it smaller or bigger, this error occurs. I am new to MATLAB. Help me please to solve my problem

Here's my code:

fid = fopen ('Matrix_A.txt','r');
i = 1;
while ~feof(fid) 
  A(i, :) = str2num(fgets(fid)); 
  i = i + 1;
end
fclose(fid);

Answer 1

[KSSV]

fid = fopen ('Matrix_A.txt','r');
i = 1;
A = cell([],1) ; 
while ~feof(fid) 
  A{i} = str2num(fgets(fid)); 
  i = i + 1;
end
fclose(fid);

You can access A by using flower braces, A is a cell. A{1}, A{2}, .....etc.