[amibroker] Item count...

["dj9866" <johnston.dc@xxxxxxxxxxx>]

As the following scan executes, I would like to have two
counters...BuyCnt and SellCnt tracking the number of buy/sell flags,
so that I can generate a ratio of flags.  I have tried a number of
ways, with the last one being to use the 'while' statement and
clearing the counters prior to the 'while'.  Didn't gain anything...it
seems that the counters are still being reset every time a new symbol
is scanned.  Will appreciate any assistance.  Thank you. 


BuyCnt=0;
SellCnt=0;
PassCnt=1;
while(PassCnt>=1)
{
  PassCnt--;
  PrevSig=0;
  UpFlag=0;
  DnFlag=0;
  BCnt=BarCount-1;

  period = Param( "RSI Period", 13, 1, 100, 1 );
  MAperiod = Param( "MA Period", 5, 1, 100, 1 );
  StDevperiod = Param( "StDev Period", 8, 1, 100, 1 );
  upday=IIf(C>Ref(C,-1),C-Ref(C,-1),0);
  downday=IIf(Ref(C,-1)> C,Ref(C,-1)-C,0);
  Stda=MA(StDev(C,StDevperiod),MAperiod);
  V1=StDev(C,StDevperiod)/Stda;
  TD=int(period/V1);
  Su=Sum(upday,TD);
  Sd=Sum(downday,TD);
  M1=(Su-Sd);
  M2=abs(Su+Sd);
  DMI=50*(M1+M2)/M2;
  xs=Param("Smoothing",3,1,10,1);
  xs1=Param("Trigger Line",5,1,10,1);
  Buy=Cross(EMA(DMI,xs),MA(DMI,xs1));
  Sell=Cross(MA(DMI,xs1),EMA(DMI,xs));
    
  if (Buy[BCnt])
  {
  	PrevSig=BarsSince(Sell);
  	BuyCnt++;
  	IIf(Close>Ref(Close,-1),UpFlag=1,DnFlag=0);
  }
  if (Sell[BCnt])
  {
  	PrevSig=BarsSince(Buy);
  	SellCnt++;
  	IIf(Close<Ref(Close,-1),UpFlag=0,DnFlag=1);
  }

  Filter = (MarketID(0)==1 OR MarketID(0)==2 OR MarketID(0)==3)
	//Dow Jones,American Echange,NASDAQ AND UpFlag OR DnFlag
	AND Buy AND UpFlag
	OR Sell AND DnFlag
  	AND PrevSig>5
  	AND Close > 3
  	AND MA(V,30) > 250*1000
  ;
  AddColumn( Close,"Close");
 
AddColumn(V/1000,"Vol*1000",format=6.0,colorDefault,colorDefault,width=75);
 
AddColumn(Buy,"Buy",format=1.0,colorDefault,IIf(Buy,colorGreen,colorDefault));
  AddColumn(UpFlag,"UpFlag");	
 
AddColumn(Sell,"Sell",format=1.0,colorDefault,IIf(Sell,colorRed,colorDefault));
  AddColumn(DnFlag,"DnFlag");	
  AddColumn(PrevSig,"PrevSig/Days
Ago",format=3.0,colorDefault,colorDefault,width=125);
  AddColumn(BuyCnt,"BuyCnt",format=3.0);
  AddColumn(SellCnt,"SellCnt",format=3.0);
}



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