[amibroker] Trailing Stop Lines

["werner_reutter" <werner_reutter@xxxxxxxx>]

Can anybody help me? I try to program 2 simple trailing stop lines (5% 
and 10%, adjustable) to see wenn I have to sell a investment by hand. 
The code is below but it´s not realy doing what I want. My main problem 
seems to be, how can I tell the program when to start the lines. the 
easiest way would be by cliking on the chart and pressing the "Buy" 
button. Removeing with the "Sell" button. I thought using bey an sell 
instead of other variables would make it easier, but I am not sure.
If you try it you can see that it´s not doing what I wanted ;-).
Can anybody help me what to change. 

Regards
Werner

// AFL Code:

TrailStop_1 = Param("Trailing Stop 1",5,1,50,1);
TrailStop_2 = Param("Trailing Stop 2",10,1,50,1);

Buy = Sell = 0;

Buy = ParamTrigger("Start", "Start" );					
	
Sell = ParamTrigger("Clear", "Clear Trailing Stops" ); 	
Toggle = Flip( Buy, Sell);						
				
Stopline_1 = IIf( Toggle, HighestSince( Buy, High ) * ( 1 - 0.01 * 
TrailStop_1 ), Null );		// Stoplinie an wenn Toggle = 1
Stopline_2 = IIf( Toggle, HighestSince( Buy, High ) * ( 1 - 0.01 * 
TrailStop_2 ), Null );

Plot( Stopline_1 , "Trailing Stop Line 1", colorRed );
Plot( Stopline_2 , "Trailing Stop Line 2", colorBlue );



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