How to modify Loop variable inside the loop body

for i=1:10
    if randi(10)==3
        i=i-1;
    end
end

In the above code, i must get reduced by 1 whenever the if condition comes true. But it doesn't gets so. Any modifications so that loop variable i gets modified inside the loop body?

Answer 1

[Jan]

This does not work in a for loop, but in while:

i = 1;
while i <= 10
  disp(i)
  ...
  i = i + 1;
  if randi(10) == 3
      i = i-1;  % Or i - 2?
  end
end

[Vatsal Gupta]

Thanks. I changed for into while and it worked :)

[Douglas Anderson]

Thank you once again, Jan!