Euler Method Loop: Loop values like step size through Euler Method

I am trying to run the for loop below with different values of h. I'm new to matlab and have been struggling to figure out how to do this. Any help is appreciated. Thank you.

 k = 0.2;
 F = @(t,y) -k*y;
 t0 = 0;
 h = 1;
 tfinal = 5;
 y0 = 1;
 y = y0; % put y0 into y
 yout = y; % put y into the output

 for t = t0 : h : tfinal - h 
 s = F(t,y); 
 y = y + h*s; 
 yout = [yout ; y];   
 end