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Thanks Fred. That should let me make this thing work with a loop.
--
Terry
-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On
Behalf Of Fred
Sent: Tuesday, January 31, 2006 11:43
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: EasyLanguage question
In the ela/d/s code ...
Y = u_2* price+2*u1*y1-u1_2*y2;
y2 = y1;
y1 = y;
The next time Y is calculated ( on the next bar ) Y2 will have the
value of Y from two bars ago ... Y1 will have the value of Y from
one bar ago ...
--- In amibroker@xxxxxxxxxxxxxxx, "Terry" <MagicTH@xxxx> wrote:
>
> I am trying to convert a function called Twitcher from TradeStation
> EasyLanguage. Twitcher concept was published in last month's
FUTURES
> Magazine. Code is from a user's group.
>
> QUESTION: Does the following code for y refer to the next bar and
next 2
> bars or previous bars?
>
> Y = u_2* price+2*u1*y1-u1_2*y2;
> y2 = y1;
> y1 = y;
>
> Here's the entire EasyLanguage code (for the twitcher function)
>
> EASYLANGUAGE FUNCTION:
> Inputs: price(NumericSeries), initLength(NumericSimple);
> variables: length(0), x(0), y(0), y1(0), y2(0), u(0), u1(0), u1_2
(0),
> u_2(0);
>
> If initLength <2 then length = 2 else length = initlength;
> if CurrentBar = 1 then begin
> x=(1- cosine(360/Length))/0.414213562;
> u=-x + squareroot(x*x+2*x);
> u1= 1.0-u;
> u1_2=u1*u1;
> u_2=u*u;
> y1=price;
> y2=y1;
> end;
> y=u_2* price+2*u1*y1-u1_2*y2;
> y2=y1;
> y1=y;
>
> TWITCH=Y
> --
> Terry
>
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