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//Dynamic Momentum Index Tushar Chande Translated to AFL by Jayson Casavant
//Cmo5 formula
CMO5_1=Sum( IIf( C > Ref( C, -1 ) , ( C - Ref( C ,-1 ) ) ,0 ) ,5 ) ;
CMO5_2=Sum( IIf( C < Ref( C ,-1 ) , ( Ref( C ,-1 ) - C ) ,0 ) ,5 );
CMO5=DEMA(100 * (( CMO5_1 -CMO5_2) /( CMO5_1+CMO5_2)),3);
//Cmo10 formula
CMO10_1=Sum( IIf( C > Ref( C, -1 ) , ( C - Ref( C ,-1 ) ) ,0 ) ,10 ) ;
CMO10_2=Sum( IIf( C < Ref( C ,-1 ) , ( Ref( C ,-1 ) - C ) ,0 ) ,10 );
CMO10=DEMA(100 * (( CMO10_1 -CMO10_2) /( CMO10_1+CMO10_2)),3);
//Cmo20 formula
CMO20_1=Sum( IIf( C > Ref( C, -1 ) , ( C - Ref( C ,-1 ) ) ,0 ) ,20 ) ;
CMO20_2=Sum( IIf( C < Ref( C ,-1 ) , ( Ref( C ,-1 ) - C ) ,0 ) ,20 );
CMO20=DEMA(100 * (( CMO20_1 -CMO20_2) /( CMO20_1+CMO20_2)),3);
// dmi formula
dmi=((StDev(C,5)* CMO5)+(StDev(C,10)* CMO10)+(StDev(C,20)*
CMO20))/(StDev(C,5)+StDev(C,10)+StDev(C,20));
pds=Param("Smoothing",3,1,10,1);
pds1=Param("Trigger Line",5,1,10,1);
Plot(EMA(dmi,pds),"Dynamic Momentum Index",colorDarkGreen,1);
Plot(MA(dmi,pds1),"trigger",colorRed,1);
Buy=Cross(EMA(dmi,pds),MA(dmi,pds1));// AND Trend;
Sell=Cross(MA(dmi,pds1),EMA(dmi,pds));// AND NOT (Trend);
PlotShapes(IIf(Buy,shapeUpArrow,shapeNone) ,colorBrightGreen);
PlotShapes(IIf(Sell,shapeDownArrow,shapeNone),colorRed);
What is the difference in these two DMI plots? I simply scrolled the
screen one date to the right.
I have this problem with several stocks, but the date that the
indicator goes haywire on is not the same for any of them. I also
cannot find anything wrong with the data on the date that the
indicator goes nuts. It is data that is right in line with both
price and volume, not extraordinary in any way. But the indicator
becomes worthless, suddenly.
Can anyone clue me in here?
Yuki
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