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The B and Q formulae are identical except for the last line of code.
The B version looks like a failed attempt to normalize Q values -
there are large-value spikes here and there.
To normalize Q to 0~100% boundaries, replace last line of Q code by
this:
---8<-------------
Q:=(trend+noise)*cf;
pds:=Input("normalizing periods",1,2520,252);
Qnorm:=(Q-LLV(Q,pds))/(HHV(Q,pds)-LLV(Q,pds)
+.000001)*100;
Qnorm
---8<-------------
jose '-)
--- In equismetastock@xxxxxxxxxxxxxxx, "billtrudeau" <billtrudeau@xxxx
> wrote:
>
> The B-indicator is supposed to be bounded by 0 and 100. The article
> is not available online but the link for the code below is
> http://www.traders.
com/Documentation/FEEDbk_docs/TradersTips/TradersT
> ips.html
>
> Thanks
>
>
> METASTOCK: TREND-QUALITY INDICATOR
>
> David Sepiashvili's article "Trend-Quality Indicator" introduces two
> new indicators: the Q-indicator and B-indicator. Both can be added
> to MetaStock using the formulas listed here.
>
> To enter this indicator into MetaStock, do the following:
>
>
> 1. In the Tools menu, select Indicator Builder.
> 2. Click New to open the Indicator Editor for a new indicator.
> 3. Type the name of the formula.
> 4. Click in the larger window and type in the formula.
> Name: Q-indicator:
> Formula:
> m:=Input("% Scalar trend period",1,25,4);
> n:=Input("% Scalar noise period",1,500,250);
> cf:=Input("% Scalar correction factor",1,250,100);
> p1:=Input("First moving average periods",1,200,7);
> p2:=Input("Second moving average periods",1,200,15);
> rev:=BarsSince(Cross(Mov(C,p1,E),Mov(C,p2,E)) OR
> Cross(Mov(C,p2,E),Mov(C,p1,E)));
> cpc:=Cum(LastValue(Sum(ROC(C,1,$),LastValue(rev+PREV-PREV))+PREV-
> PREV));
> trend:=Mov(cpc,m,E);
> dt:=cpc-trend;
> noise:=C*Sqrt(Mov(dt*dt,n,S));
> (trend/noise)*cf
> Name: B-indicator
> Formula:
> m:=Input("% Scalar trend period",1,25,4);
> n:=Input("% Scalar noise period",1,500,250);
> cf:=Input("% Scalar correction factor",1,250,100);
> p1:=Input("First moving average periods",1,200,7);
> p2:=Input("Second moving average periods",1,200,15);
> rev:=BarsSince(Cross(Mov(C,p1,E),Mov(C,p2,E)) OR
> Cross(Mov(C,p2,E),Mov(C,p1,E)));
> cpc:=Cum(LastValue(Sum(ROC(C,1,$),LastValue(rev+PREV-PREV))+PREV-
> PREV));
> trend:=Mov(cpc,m,E);
> dt:=cpc-trend;
> noise:=C*Sqrt(Mov(dt*dt,n,S));
> (Abs(trend)/Abs(trend+noise))*cf
> Figure 2 shows how these indicators look on a chart of SPY.
>
>
>
> FIGURE 2: METASTOCK, TREND-QUALITY INDICATOR AND B-INDICATOR. Here
> are the Q-indicator and B-indicator on a chart of SPY.
> --- In equismetastock@xxxxxxxxxxxxxxx, "Jose" <josesilva22@xxxx>
> wrote:
> >
> > Post the B-indicator here, and let's take a look at it.
> >
> > jose '-)
> >
> >
> > --- In equismetastock@xxxxxxxxxxxxxxx, "billtrudeau"
> <billtrudeau@xxxx
> > > wrote:
> > > Has anyone tried the B-indicator in the latest, April 2004, S&C?
> I
> > > believe that the formula is incorrect. The article says that the
> > > denominator should be Abs(trend)+noise while the Traders' Tip
> has
> > > Abs(trend + noise). I believe that there may be additional
> problems
> > > and you need to be careful of your selection of the parameters
> that
> > > you use. Any thoughts?
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