MATLAB: How to give IF condition in following code

ifrandom number generator

I have following code. It is generating some random values of y (0 or 1). I want it to select at least 2 ones's(1) and it it should never select all zeros (0).
for i=1:W
  y = randi([0 1]);
  QTWM2 = round(((1000-500)*(rand(1)))+500);
  WSCT= y* round(((1500-1000)*(rand(1)))+1000);
  WCST1(i)=WSCT;
  QTWM1(i)=QTWM2;
  f11(i) = y;
  f1(i)=CFWT*y;
end
Please provide me with the solution

Best Answer

   b = true;
   while b
     yt = randi([0,1],W,1);
     b = (sum(yt)<2); % Repeat if 'yt' has less than two ones
   end
   for i=1:W
     y = yt(i);
     QTWM2 = ....
     ....
The while-loop will seldom have to repeat itself.
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