变速均线指标 (源码)

VOLATILITY:=SUM(ABS(CLOSE-REF(CLOSE,1)),T);
ER:=SUM(ABS(DIRECTION/VOLATILITY),1);
FastC:=2/(N+1);
SlowC:=2/(M+1);
Smooth:=ER*(FastC-SlowC)+slowC;
SE:=Smooth*Smooth;
YY:=REF(Close,1)+SE*(Close-Ref(Close,1));
AA:=IF(SUM(1,0)=T+1,YY,0);
BB:=BARSLAST(AA
CC:=REF(Close,BB);
AMA:REF(CC,1)+SE*(Close-REF(CC,1));