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Automatic Fib Levels.afl：源码内容

							//------------------------------------------------------------------------------
//
//  Formula Name:    Automatic Fib Levels
//  Author/Uploader: Aron Pipa 
//  E-mail:          
//  Date/Time Added: 2005-12-11 09:02:48
//  Origin:          
//  Keywords:        
//  Level:           basic
//  Flags:           indicator
//  Formula URL:     http://www.amibroker.com/library/formula.php?id=573
//  Details URL:     http://www.amibroker.com/library/detail.php?id=573
//
//------------------------------------------------------------------------------
//
//  Plots automatically Fib leveles.
//
//------------------------------------------------------------------------------
/*---------------------------------------------------
	Automatic Fib Levels
	Aron Pipa, December, 11, 2005
--------------------------------------------------------*/
Plot(C,"", colorWhite,styleCandle);
// Get values for fib levels 
StartBar=SelectedValue(BarIndex());
FinishBar = EndValue( BarIndex() ); 
i = startbar;
period = FinishBar - StartBar;
Lo =LLV(L,period);
Hi = HHV(H,period);
Line0 = 0; 
Line1 = 0;
Line2 = 0;
Line3 = 0;
Line4= 0;
Line100 = 0;
for( i = startbar; i < finishbar; i++ )
{
if(EndValue(C)<SelectedValue(C))
{
Line0  = EndValue(Lo);
Line100 = EndValue(Hi);
Line1 = Line0 + abs(Line100-Line0)*0.236;
Line2 = Line0 + abs(Line100-Line0)*0.382;
Line3 = Line0 + abs(Line100-Line0)*0.5;
Line4 = Line0 + abs(Line100-Line0)*0.618;
}
else
{
Line100  = EndValue(Lo);
Line0 = EndValue(Hi);
Line1 =Line0 - abs(Line100-Line0)*0.236;
Line2 = Line0 - abs(Line100-Line0)*0.382;
Line3 = Line0 - abs(Line100-Line0)*0.5;
Line4 = Line0 - abs(Line100-Line0)*0.618;
}
}
// external fib lines begining fom selecetdbarindex()
fib0= LineArray(startbar, Line0, finishbar, Line0, 0, 1);
fib100 = LineArray(startbar, Line100, finishbar, Line100, 0, 1);
// depth of middle lines
n= round((finishbar-startbar)/2);
// middle lines
fib1= LineArray((finishbar-n), Line1, finishbar, Line1, 0, 1);
fib2= LineArray((finishbar-n), Line2, finishbar, Line2, 0, 1);
fib3= LineArray((finishbar-n), Line3, finishbar, Line3, 0, 1);
fib4= LineArray((finishbar-n), Line4, finishbar, Line4, 0, 1);
Plot(fib0,"", colorWhite);
Plot(fib100,"", colorRed);
Plot(fib1,"", colorGrey50);
Plot(fib2,"", colorGrey50);
Plot(fib3,"", colorOrange);
Plot(fib4,"", colorGrey50);
Title = Name() + " -  FIB LEVELS ";

						