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iascool,
in the Conway book they explain how to use rectangles in a trading system. Rectangles precede a breakout either on the long or on the short side. Their system goes either long or short at the bar following a rectangle if the price goes above / below a certain value.
This code is only to play around and see what happens in the chart. If you want to use the concept in a system you'll have to do some additional programming,
rgds, Ed
----- Original Message -----
From: iascool
To: amibroker@xxxxxxxxxxxxxxx
Sent: Sunday, November 14, 2004 12:53 PM
Subject: [amibroker] Re: visualising rectangles
If you dont mind can u also share its significance and application
Regards
--- In amibroker@xxxxxxxxxxxxxxx, "ed nl" <ed2000nl@xxxx> wrote:
> /*
>
> Rectangle Development
>
> after: "Professional Stock Trading", M. Conway / A. Behle, 2003,
pages 106, 107, 108
>
> Edward Pottasch, nov 2004
>
> */
>
> RectangleLength = 8;
> RangeLength = RectangleLength * 3;
> RangeFactor = 1.5;
> RangeRatioLimit = 0.3;
> AtrPeriod = RangeLength;
>
> // rectangle
> hg = SelectedValue(HHV(H,RectangleLength));
> lw = SelectedValue(LLV(L,RectangleLength));
> HeightRectangle = hg - lw;
>
> // preceding range
> hgp = SelectedValue(Ref(HHV(H,RangeLength),RectangleLength * -1));
> lwp = SelectedValue(Ref(LLV(L,RangeLength),RectangleLength * -1));
> HeightRangeLength = hgp - lwp;
>
> // aspect ratio
> ar = HeightRectangle / HeightRangeLength;
>
> // ATR
> at = SelectedValue(ATR(AtrPeriod));
>
> // decide if it is a rectangle
> yon = IIF(ar < RangeRatioLimit AND HeightRectangle < at *
RangeFactor, 1, 0);
>
> // visualize the rectangle
> x = Cum(1);
> lastx = LastValue(x);
> selv = SelectedValue(x);
>
> // the rectangle
> xx = IIF(x > selv - RectangleLength AND x <= selv, x - (selv -
RectangleLength),null);
> yy_l = lw + 0.0 * xx;
> yy_h = hg + 0.0 * xx;
> Plot(yy_l, "", IIF(yon,colorBrightGreen,colorRed), IIF(yon,4,1));
> Plot(yy_h, "", IIF(yon,colorBrightGreen,colorRed), IIF(yon,4,1));
>
> // preceding range
> xx = IIF(x > selv - RectangleLength - RangeLength AND x <= selv -
RectangleLength, x - (selv - RectangleLength - RangeLength),null);
> yy_l = lwp + 0.0 * xx;
> yy_h = hgp + 0.0 * xx;
> Plot(yy_l, "", colorWhite, 1);
> Plot(yy_h, "", colorWhite, 1);
>
> Plot(C,"",colorwhite,64);
>
> "Aspect Ratio: " + writeval(ar);
> "Height rectangle: " + writeval(HeightRectangle);
> "ATR * Rangefactor: " + writeval(at * RangeFactor);
> "Rectangle detected: " + writeif(yon," TRUE"," FALSE");
>
> [Non-text portions of this message have been removed]
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