[amibroker] EasyLanguage question

["Terry" <MagicTH@xxxxxxxxxxx>]

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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