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[EquisMetaStock Group] EMA - ATR volatility adjusted



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Any feedback on this indicator appreciated:

=============================
EMA - ATR volatility adjusted
=============================

---8<---------------------------

{ ATR volatility-adjusted, dyn-period EMA v2.0 }

{ Positive sensitivity:
 EMA periodicity shortens on high ATR volatility 
 - increases on low ATR volatility }
{ Negative sensitivity:
 EMA periodicity shortens on low ATR volatility
 - increases on high ATR volatility }

{ [1]EMA:         ATR volatility-adjusted EMA }
{ [2]Dyn periods: EMA periodicity used }
{ [3]ATR vlty:    ATR volatility 0~100% }
{ [4]Signals:     EMA/price crossover signals }

{ ©Copyright 2004 Jose Silva }
{ http://users.bigpond.com/prominex/pegasus.htm }

pds:=Input("EMA avg periods",1,2520,21);
sens:=Input("ATR volatility sensitivity (+100 to -100)%",-100,100,100)
/100;
pdsVlty:=Input("ATR voltility sampling periods",
 2,2520,126);
pdsATR:=Input("ATR periods",1,2520,10);
x:=Input("[1]Open  [2]High  [3]Low  [4]Close  [5]Vol  [6]P",1,6,4);
plot:=Input("[1]EMA,  [2]Dyn periods,  [3]ATR vlty,  [4]Signals",1,4,
1);

x:=If(x=1,O,If(x=2,H,If(x=3,L,If(x=5,V,If(x=6,P,C)))));
ATRvlty:=(ATR(pdsATR)-LLV(ATR(pdsATR),pdsVlty))
 /(HHV(ATR(pdsATR),pdsVlty)
 -LLV(ATR(pdsATR),pdsVlty)+.000001);
multi:=If(ATRvlty<=.5,
 10*Power(ATRvlty,3.4739)+.1,
 10*Power(ATRvlty,3.32)+.000001);
multi:=If(sens>0,1/multi,multi);
multi:=If(multi<1,1-(1-multi)*Abs(sens),
 (multi-1)*Abs(sens)+1);
pds:=pds*multi;
pds:=If(Cum(x<>-101)-(pdsVlty+pdsATR)<pds,
 Cum(x<>-101)-(pdsVlty+pdsATR),pds);
pds:=If(pds<1,1,pds);
ATREma:=x*2/(pds+1)+PREV*(1-2/(pds+1));
signals:=Cross(x,ATREma)+-Cross(ATREma,x);

If(plot=2,pds,If(plot=3,ATRvlty*100,
 If(plot=4,signals,ATREma)))

---8<---------------------------

jose '-)




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