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Jose,
Thanks for posting your code. I actually used a good bit of your code
to give me the ideas for what I posted. The volatility index(Vt) is
the same that you and Henry have used in several of your indicators.
The code I posted is really a Cutler's RSI using both the Sum and Mov
variable Dll from the Equis Forum. I wanted to do that just to show
everyone what the capabilities of the DLL's were and hopefully entice
Patrick into writing more DLL's for us.
How are the coconuts? I understand you're getting guite good at
climbing those trees bare footed. Send pics!
regards,
Preston
--- In equismetastock@xxxxxxxxxxxxxxx, "Jose Silva"
<josesilva22@xxxx> wrote:
>
> Posted code too soon. :)
> Here it is again minus two dll syntax bugs:
>
> ========================
> Dynamic Mom Index - jose
> ========================
> ---8<---------------------------
>
> { Jose's Dynamic Momentum Index v4.0, 0~100% }
> { Copyright 2005 Jose Silva }
> { For personal use only }
> { http://www.metastocktools.com }
>
> { Indicator uses Dll developed by MetaStock Forum Crew }
> { Available at http://forum.equis.com }
>
> pds:=Input("avg DyMoIdx periods",3,260,21);
> Stpds:=Input("Standard Deviation periods",2,260,5);
> x:=Input("use Open=1 High=2 Low=3 Close=4 Volume=5",1,5,4);
> plot:=Input("[1]Dynamic Momentum Idx, [2]dynamic periods
> used",1,2,1);
>
> x:=If(x=1,O,If(x=2,H,If(x=3,L,If(x=5,V,C))));
> Vt:=Stdev(x,Stpds)/Mov(Stdev(x,Stpds),10,S);
> pds:=pds/(Vt+.14142);
> pds:=If(pds>Cum(IsDefined(x))-13,
> Cum(IsDefined(x))-13,pds);
> pds:=If(pds<2,2,pds);
>
> Up:=If(x>Ref(x,-1),x-Ref(x,-1),0);
> Dw:=If(x<Ref(x,-1),Ref(x,-1)-x,0);
> UpAvg:=ExtFml("ForumDll.VarMOV",Up,pds,e);
> DwAvg:=ExtFml("ForumDll.VarMOV",Dw,pds,e);
> DyMoIdx:=100-(100/(1+UpAvg/Max(DwAvg,.000001)));
>
> If(plot=1,DyMoIdx,pds)
>
> ---8<---------------------------
>
>
> jose '-)
> http://www.metastocktools.com
>
>
>
> --- In equismetastock@xxxxxxxxxxxxxxx, "Jose Silva"
> <josesilva22@xxxx> wrote:
> > Also check out the faster dll version below - it may need
debuging
> > as I don't have MetaStock with me at the moment on holidays.
> >
> > ========================
> > Dynamic Mom Index - jose
> > ========================
> > ---8<---------------------------
> >
> > { Jose's Dynamic Momentum Index v4.0, 0~100% }
> > { Copyright 2005 Jose Silva }
> > { For personal use only }
> > { http://www.metastocktools.com }
> >
> > { Indicator uses Dll developed by MetaStock Forum Crew }
> > { Available at http://forum.equis.com }
> >
> > pds:=Input("avg DyMoIdx periods",3,260,21);
> > Stpds:=Input("Standard Deviation periods",2,260,5);
> > x:=Input("use Open=1 High=2 Low=3 Close=4 Volume=5",1,5,4);
> > plot:=Input("[1]Dynamic Momentum Idx, [2]dynamic periods
> > used",1,2,1);
> >
> > x:=If(x=1,O,If(x=2,H,If(x=3,L,If(x=5,V,C))));
> > Vt:=Stdev(x,Stpds)/Mov(Stdev(x,Stpds),10,S);
> > pds:=pds/(Vt+.14142);
> > pds:=If(pds>Cum(IsDefined(x))-13,
> > Cum(IsDefined(x))-13,pds);
> > pds:=If(pds<2,2,pds);
> >
> > Up:=If(x>Ref(x,-1),x-Ref(x,-1),0);
> > Dw:=If(x<Ref(x,-1),Ref(x,-1)-x,0);
> > UpAvg:=ExtFml("ForumDll.VarMOV",Up,pds);
> > DwAvg:=ExtFml("ForumDll.VarMOV",Dw,pds);
> > DyMoIdx:=100-(100/(1+UpAvg/Max(DwAvg,.000001)));
> >
> > If(plot=1,DyMoIdx,pds)
> >
> > ---8<---------------------------
> >
> >
> > jose '-)
> > http://www.metastocktools.com
> >
> >
> >
> > --- In equismetastock@xxxxxxxxxxxxxxx, "Jose Silva"
> > <josesilva22@xxxx> wrote:
> > The time periods the DMI can reach is around a maximum of 30 and a
> > minimum of 3.
> >
> > The dynamic component of MetaStock's standard Dynamic Momentum
> > Index seems to be even narrower, beginning or ending around 15
> > periods from memory.
> >
> > Take a look at the DMI version below - and note the two PREV
> > functions, which may explain why the MetaStock version is so
> > slow.
> > Using a variable-input EMA dll will speed up processing,
something
> > that is necessary if contemplating using the DMI in any
> > exploration.
> >
> >
> > MetaStock -> Tools -> Indicator Builder -> New
> > -> Copy and paste formula below.
> >
> >
> > ========================
> > Dynamic Mom Index - jose
> > ========================
> > ---8<---------------------------
> >
> > { Jose's Dynamic Momentum Index v3.1, 0~100% }
> > { ?Copyright 2003-2004 Jose Silva }
> > { http://www.metastocktools.com }
> >
> > pds:=Input("avg DyMoIdx periods",3,252,21);
> > Stpds:=
> > Input("Standard Deviation periods",2,252,5);
> > x:=Input("use Open=1 High=2 Low=3 Close=4 Volume=5 P=6",1,6,4);
> > plot:=Input("[1]Dynamic Momentum Idx, [2]dynamic periods
> > used",1,2,1);
> >
> > x:=If(x=1,O,If(x=2,H,If(x=3,L,If(x=5,V,
> > If(x=6,P,C)))));
> > Vt:=Stdev(x,Stpds)/Mov(Stdev(x,Stpds),10,S);
> > pds:=pds/(Vt+.14142);
> > pds:=If(pds>Cum(IsDefined(x))-13,
> > Cum(IsDefined(x))-13,pds);
> > pds:=If(pds<2,2,pds);
> >
> > Up:=If(x>Ref(x,-1),x-Ref(x,-1),0);
> > Dw:=If(x<Ref(x,-1),Ref(x,-1)-x,0);
> > UpAvg:=Up*2/pds+PREV*(1-2/pds);
> > DwAvg:=Dw*2/pds+PREV*(1-2/pds);
> > DyMoIdx:=
> > 100-(100/(1+UpAvg/If(DwAvg>0,DwAvg,.000001)));
> >
> > If(plot=1,DyMoIdx,pds)
> >
> > ---8<---------------------------
> >
> >
> > jose '-)
> > http://www.metastocktools.com
> >
> >
> >
> > --- In equismetastock@xxxxxxxxxxxxxxx, pumrysh <no_reply@xxxx>
> > wrote:
> > An indicator I think you will enjoy.
> >
> > Preston
> >
> >
> > Description:
> >
> > The Dynamic Momentum Index (DMI) was developed by Tushar Chande
> > and Stanley Kroll. The indicator is covered in detail in their
> > book The New Technical Trader.
> >
> > The DMI is identical to Welles Wilder's Relative Strength Index
> > except the number of periods is variable rather than fixed. The
> > variability of the time periods used in the DMI is controlled by
> > the recent volatility of prices. The more volatile the prices, the
> > more sensitive the DMI is to price changes. In other words, the
> > DMI will use more time periods during quiet markets, and less
> > during active markets. The time periods the DMI can reach is
> > around a maximum of 30 and a minimum of 3. The volatility index
> > used in controlling the time periods in the DMI is based on a
> > calculation using a five period standard deviation and a ten
> > period average of the standard deviation. The advantage of using a
> > variable length time period when calculating the RSI is that it
> > overcomes the negative effects of smoothing, which often obscure
> > short-term moves.
> > In this indicator the option to use a bipolar index is also
> > introduced. The formula for a bipolar index is Bipolar =( up -
> > down ) / ( up + down )
> >
> > Interpretation:
> > Chande recommends using the DMI much the same as the RSI.
However,
> > because the DMI is more sensitive to market dynamics, it often
> > leads the RSI into overbought / oversold territories by one or two
> > days.
> >
> > Like the RSI, look for overbought (bearish) conditions above 70
> > and oversold (bullish) conditions below 30. However, before basing
> > any trade off of strict overbought/oversold levels using DMI or
> > any overbought/oversold indicator, Chande recommends that you
> > first qualify the trendiness of the market using indicators such
> > as r-squared or CMO. If these indicators suggest a non-trending
> > market, then trades based on strict overbought/oversold levels
> > should produce the best results. If a trending market is
> > suggested, you can use the DMI to enter trades in the direction of
> > the trend.
> > Formula:
> > {Dynamic Momentum Index (DMI)}
> > {written by Preston Umrysh}
> > {This indicator uses Dll software developed by MetaStock Forum
> > Crew}
> > {http://forum.equis.com)}
> > x:=Input("normal ouput=1 Biplolar index=2",1,2,1);
> > Vt:=(Stdev(C,5)/Mov(Stdev(C,5),10,S))*10;
> > Umom:=If(C>Ref(C,-1),C-Ref(C,-1),0);
> > Dmom:=If(C<Ref(C,-1),Ref(C,-1)-C,0);
> > UPS:= ExtFml( "ForumDll.VarSUM", Umom,Vt);
> > DNS:= ExtFml( "ForumDll.VarSUM", Dmom,Vt);
> > SumU:=ExtFml("ForumDll.VarMOV",UPS,Vt,e)/Vt;
> > SumD:=ExtFml("ForumDll.VarMOV",DNS,Vt,e)/Vt;
> > RS:=SumU/SumD;
> > DMnm:=100-(100/(1+RS));
> > DMIn:=(SumU-SumD)/(SumU+SumD);
> > If(x=1,DMnm,DMin); {end}
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