[amibroker] Re: need help am relative new here

["pftrader" <apforex@xxxxxxxxx>]

_SECTION_BEGIN("Performance Exploration");

LookBack = Param("LookBack Period", 10, 1, 100, 1);
list =  "$SPX,A,AA,AAPL,ABC,ABI,ADM,AIZ";

if(Status("action") == actionExplore)
{

   for( i = 0; ( symbol = StrExtract( list, i ))  != ""; i++ )      
   {
      CategoryAddSymbol(symbol,categoryWatchlist,0);         
   }
   
   fvb = BarCount-1 - LookBack;
   fc = C;

    if( ! IsNull( fc[ fvb ] ) )
    {
         Performance = 100 * ( fc - fc[fvb ])/ fc[ fvb ];
      
    }


   Filter = InWatchList( 0 ) AND Status("lastbarinrange");
   AddColumn(performance,"Performance % " );
   
}

_SECTION_END();



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