{062713 TRP and TS Support Convert Aroon Oscillator to Strategy}

{ Reference: Tushar S. Chande, "A Time Price Oscillator", Technical Analysis of   
  Stocks & Commodities, V. 13:9 (369-374) }  
  
inputs:  
	int AroonLength( 25 ) ;  // Aroon length  
 
{ 
Started with the built-in Aroon Oscillator indicator.  Converted it to a strategy 
by: 
 
1) Remove all plot statements - these do not work in strategies 
2) Converting Alerts to entries or exits 
} 
	   
variables:  
	double AroonOscValue( 0 ),  
	bool EntryCondition( false) ;  
  
//  Calc the Aroon Oscillator value using the built-in AroonOsc function 
AroonOscValue = AroonOsc( AroonLength ) ;  
 
//  Check that we are past the first bar of the chart to prevent spurious entries 
if CurrentBar > 1 then begin  
 
	//  Cross over zero triggers long entry or reversal from short to long 
	if AroonOscValue crosses over 0 then  
		Buy at next bar at market 
		 
	//  Cross under zero triggers short entry or reversal from long to short 
	else if AroonOscValue crosses under 0 then  	 
		SellShort at next bar at market ; 
 
end ;