Oscillator Smoothed Adapative Stochastic Oscillator

Smoothed Adapative Stochastic Oscillator
n:=Input("**Volatility** lookback length",1,50,20);
x:=Input("%K smoothing (exponential smoothing)",1,50,3);
y:=Input("%D smoothing (exponential smoothing)",1,50,3);
lenmax:=28;
lenmin:=7;
v1:=Stdev(C,n);
v2:=HHV(v1,n);
v3:=LLV(v1,n);
v4:=((v1-v3)/(v2-v3));
currlen:=(Int(lenmin+(lenmax-lenmin)*(1-v4)));
hh:=HHV(H,LastValue(currlen));
ll:=LLV(L,LastValue(currlen));
RawStochK:=((C-ll)/(hh-ll))*100;
SmoothedStochK:=Mov(RawStochK,x,E);
StochD:=Mov(SmoothedStochK,y,E);
20;
80;
StochD;
SmoothedStochK;