How can I run a for loop unless a condition is met

I am trying to run a for loop that starts at 2 and increments by 1 to 4 and it is inside a while loop that ends if q=2. What I'm trying to do is exit the whole program or start the while loop over even if the for loop hasn't gotten to 4 yet. Heres what I have

for i=2:4
  if (i==2)
    g=input('Enter guess 2');
    if (g>x)
      disp('Your guess was too big')
    elseif (g==x)
      disp('You Win!')
      w=w+1;
      e=input('To play again enter 1, To quit enter 4');
      switch e
        case 1
          q=1;
        case 4
          q=2; 
      end

[Muhammad Zaheer]

I don't understand the use of the for loop here since the body of the loop executes only when i is equal to two.

Answer 1

[the cyclist]

I don't understand this code in the least, but I can make a guess from your description that you want either the break command or the continue command.

doc break

and

doc continue

for details.