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look up nz() in the AB help.
best regards,
herman
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Friday, March 14, 2008, 12:43:08 PM, you wrote:
> Can anybody see a way to adjust this "Dynamic Momentum Index "
> formula from the Library so that it always returns a value and
> not "Empty" on some intraday charts:
> _SECTION_BEGIN("Dynamic Momentum Index");
> period = Param( "RSI Period", 13, 1, 100, 1 );
> MAperiod = Param( "MA Period", 5, 1, 100, 1 );
> StDevperiod = Param( "StDev Period", 8, 1, 100, 1 );
upday=IIf(C>>Ref(C,-1),C-Ref(C,-1),0);
> downday=IIf(Ref(C,-1)> C,Ref(C,-1)-C,0);
> Stda=MA(StDev(C,StDevperiod),MAperiod);
> V1=StDev(C,StDevperiod)/Stda;
> TD=int(period/V1);
> Su=Sum(upday,TD);
> Sd=Sum(downday,TD);
> M1=(Su-Sd);
> M2=abs(Su+Sd);
> DMI=50*(M1+M2)/M2;
> xs=Param("Smoothing",3,1,10,1);
> xs1=Param("Trigger Line",5,1,10,1);
> Plot(EMA(DMI,xs),"Dynamic Momentum Index ",colorRed,1);
> Plot(MA(DMI,xs1),"trigger",colorBlue,1);
> Buy=Cross(EMA(DMI,xs),MA(DMI,xs1));
> Sell=Cross(MA(DMI,xs1),EMA(DMI,xs));
> PlotShapes(IIf(Buy ,shapeUpArrow,shapeNone) ,colorBrightGreen);
> PlotShapes(IIf(Sell,shapeDownArrow,shapeNone),colorOrange);
> Plot(70,"",2,1);Plot(30,"",2,1);
> _SECTION_END();
> I have tried substituting:
> Max(C,0.0001) instead of close
> also: DMI = (50*M1)/M2 + 50;
> instead of: DMI=50*(M1+M2)/M2;
> These were attempts to clear out any division by zero errors but
> didn't make a difference.
> Any suggestions on ways to make it work please?
> Patrick
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Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
For other support material please check also:
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