set(PEEK);
var up_potential, down_potential = price();
for(i= -20; i<=0; i++)
{
up_potential = max(up_potential, priceHigh(i));
down_potential = min(down_potential, priceLow(i));
}
//until here, up_potential / down_potential is ony the highest / lowest price during that upcoming period of 20 bars.
up_potential = abs(up_potential - priceOpen())/ATR(30);
down_potential = abs(down_potential - priceOpen())/ATR(30);