Setting boundaries of a for loop

Hi, I would like to alter my code so that the random values that I get for position do not excced past a certian point. I would like these values to be no greater than 20 and no smaller than -20 and fit into this range of numbers for 1000 points. How can I write this? Thanks so much, I'm relatively new to Matlab.

position= zeros(1,1000);
position(1)=0;

tails = 0;
heads= 1; 

for s=(2:1000)
    x= randi([0 1]);
    
    if x==tails 
        position(s)= position(s-1)-1;
        
    elseif x==heads
        position(s)= position(s-1)+1;
        
        
    end
end

[madhan ravi]

but the random numers that you are generating is 0 and 1?

[Estevan Munoz]

Maybe I worded this question wrong, but what I'm trying to do is stop the size of the position from getting too big or too small by creating a domain. So let's just say if my value x was always equal to 1 or heads, then the position would continue to keep increasing by 1 until it reaches 1000 right? So what if I wanted to make it so that the position would never get bigger than a specified number like 20.

position= zeros(1,1000);
position(1)=0;

tails= 0;
heads=1;

for s=(2:1000)
x=1
if x==tails 
    position(s)=position(s-1)-1;
    
elseif x==heads
    position(s)position(s-1)+1; 
end

Answer 1

[Matt J]

position(s) = min(position(s-1)+1 , 20);