{ Downloaded From https://www.WiseStockTrader.com }
Periods:=Input("Time Periods",1,1000,10);
Direction:=CLOSE-Ref(CLOSE,-periods);
Volatility:=Sum(Abs(ROC(CLOSE,1,$)),periods);
ER:=Abs(Direction/Volatility);
FastSC:=2/(2+1);
SlowSC:=2/(30+1);
SSC:=ER*(FastSC-SlowSC)+SlowSC;
Constant:=Pwr(SSC,2);
AMA:=If(Cum(1)=periods+1,Ref(CLOSE,-1) +
constant*(CLOSE-Ref(CLOSE,-1)),PREV +
constant*(CLOSE-PREV));
FilterPercent:=Input("Filter Percentage",0,100,15)/100;
Filter:=FilterPercent*Std(AMA-Ref(AMA,-1),Periods);
AMALow:=If(AMA<Ref(AMA,-1),AMA,PREV);
AMAHigh:=If(AMA>Ref(AMA,-1),AMA,PREV);
If(AMA-AMALow>Filter,1{Buy Signal},
If(AMAHigh-AMA>Filter,-1{Sell Signal},0{No_Signal}))