MATLAB: How to insert zeros in matrix randomly

zeros

I have this matrix:
A = 
     [2,     1,     4,     6,     2;
     9,     4,     6,     1,     2;
     5,     3,     2,     8,     3;
     7,     2,     1,     9,     3;
     7,     1,     8,     2,     4]
I try to insert zeros in each row so the matrix should looks like this:
       A=[2,     0,     1,     4,     6,     0,    2;
       9,     4,     0,     6,     0,     1,    2;
       5,     3,     2,     0,     8,     0,    3;
       7,     0,     2,     1,     0,     9,    3;
       7,     1,     8,     0,     2,     0,    4]
In this case zeros should be inserted in between maximum of 4 digits for all rows. Any idea on how to do it?

Best Answer

A =  [2,     1,     4,     6,     2;
      9,     4,     6,     1,     2;
      5,     3,     2,     8,     3;
      7,     2,     1,     9,     3;
      7,     1,     8,     2,     4]
zerospercol = randi(4);  %up to 4 zeros per column
B = [A, zeros(size(A, 1), zerospercol)];  %append zeros
for row = 1:size(B, 1)
  B(row, randperm(size(B, 2))) = B(row, :);  %shuffle the row
end
B  %display result
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