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Is that all the indicator does (subtract the close from 9 bars ago
from the current close)? Is that even the same formula I was talking
about? Is it possible for an indicator containing close
differentials to be of geometric construction? How about form a
geometric sequence? If so, how many different ways can this
theoretically be accomplished?
--- In amibroker@xxxxxxxxxxxxxxx, "Fred" <fctonetti@xxxx> wrote:
> It is ? I wouldn't call any indicator that's subtracing the close
> from 9 bars ago from the current bars of geometric construction,
> would you ?
>
> From the TradeStation code ...
>
> vars: PFE(0), C2C(0), COUNTER(0), FRACEFF(0), EMA(0);
>
> PFE = 0;
> C2C = 0;
> COUNTER = 0;
> FRACEFF = 0;
> EMA = 0;
>
> PFE = Squareroot(Power(Close - Close[9], 2) + 100);
>
> for COUNTER = 1 to 9 begin
> C2C = C2C + Squareroot(Power((Close[COUNTER - 1] - Close
> [COUNTER]),2) + 1);
> end;
>
> if (Close - Close[9]) > 0 then
> FRACEFF = Round((PFE / C2C) * 100,0)
> else
> FRACEFF = Round(-(PFE / C2C) * 100,0);
>
> if Currentbar = 1 then
> EMA = FRACEFF
> else
> EMA = Round((FRACEFF * 0.333) + (EMA[1] * (1 - 0.333)),0);
>
> Plot1(EMA,"E");
> Plot2(50,"BUYZONE");
> Plot3(-50,"SELLZONE");
>
> --- In amibroker@xxxxxxxxxxxxxxx, "MarkF2" <feierstein@xxxx> wrote:
> > All systems that behave accordingly are dimensionally coherent. But
> > need to be careful about generalizing that all geometric indicator
> > constructions, for example, are dimensionally coherent. Hans
> Hannula's
> > fractal efficiency indicator is a geometric construction but it
> > combines price and time variables so that the indicator doesn't
> retain
> > the relative importance of price and time changes when the axes are
> > rescaled independently of each other. But some people would never
> see
> > that from just looking at the formula, which is why I suggested the
> > simple and simpler approaches.
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Fred" <fctonetti@xxxx> wrote:
> > > But the simplistic explanation remains the same ... doesn't it ?
> The
> > > simple and/or complex systems I write and trade could care less
> if
> > > prices are factored up or down by 100.
> > >
> > > --- In amibroker@xxxxxxxxxxxxxxx, "MarkF2" <feierstein@xxxx>
> wrote:
> > > > Fred- If you want simplistic, I'll give you simple and
> simpler :-)
> > > >
> > > > 1. Simple. Apply Eckhardt's c-Test for dimensional coherency:
> > > > "In essence, the c-test transforms relevant formulas in an
> indicator
> > > > or system by multiplying every price term by a positive
> constant c
> > > (c
> > > > not equal to 1), while leaving nonprice terms the same. If the
> > > > transformed indicator or system gives the same indications or
> > > signals
> > > > as the original, then it has passed the c-test. If not, the
> > > > formulation in question is incoherent and depends unacceptably
> on
> > > the
> > > > units chosen."
> > > >
> > > > 2. Simpler. Make two test data files, one with actual data and
> the
> > > > second with the price terms multiplied by a constant not equal
> to
> > > 1.
> > > > put them in a single group and have AmiBroker do the work by
> > > comparing
> > > > indicators and test results on the two files.
> > > >
> > > > You can use these tools to test your theory which, by the way,
> with
> > > > complex formulas, is not a simplistic approach :-)
> > > >
> > > > Mark
> > > >
> > > >
> > > >
> > > > --- In amibroker@xxxxxxxxxxxxxxx, "Fred" <fctonetti@xxxx> wrote:
> > > > > Correct me if I'm wrong, but in my wanting to think of things
> in
> > > > > simplistic terms what I get out of this is, if one constructs
> > > > systems
> > > > > based on geometric oriented relationships then the
> relationship
> > > is
> > > > > the same after the change as it was before but not so with
> > > devices
> > > > > constructed based on arithmetic relationships. This is
> roughly (
> > > > or
> > > > > more so ) equivalent to viewing charts based on a log
> scale .vs.
> > > on
> > > > > an arithmetic scale, the second of which by definition
> provides a
> > > > > distorted view.
> > > > >
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