[amibroker] Help on indicator not plotting

["jfk_92" <jfk_92@xxxxxxxxx>]

I have the following code for the "phase Change indicator" appeared 
on May TASC. I can't have the indicator PCI plotted. Any suggestion? 
Thanks

Jim

==================================
Period=Param("Period", 35,3,200);

Momentum=(C-Ref(C,period))/(period-1);
PCI=0;
DUP=0;
DDOWN=0;

for (i=Period-1;i<=BarCount-1;i++)
{
   DUP[i]=0;
   DDOWN[i]=0;
   for (j=i;j<=i-period+1;j--)
   {
      T=C[i-period+1]+(j-i+period-1)*Momentum[i];   
      if(C[j]>T)
        DUP[i]=DUP[i]+C[j]-T;
      if(C[j]<T)
        DDOWN[i]=DDOWN[i]+T-C[j];
   }
  PCI[i]=DUP[i]/(DUP[i]+DDOWN[i])*100;
}

Plot(C,"C",colorBlack,styleCandle|styleOwnScale);
Plot(PCI,"PCI",colorBlue,styleThick);



------------------------ Yahoo! Groups Sponsor ---------------------~-->
Buy Ink Cartridges or Refill Kits for your HP, Epson, Canon or Lexmark
Printer at MyInks.com.  Free s/h on orders $50 or more to the US & Canada.
http://www.c1tracking.com/l.asp?cid=5511
http://us.click.yahoo.com/mOAaAA/3exGAA/qnsNAA/GHeqlB/TM
---------------------------------------------------------------------~->

Send BUG REPORTS to bugs@xxxxxxxxxxxxx
Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
-----------------------------------------
Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx 
(Web page: http://groups.yahoo.com/group/amiquote/messages/)
--------------------------------------------
Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
     http://groups.yahoo.com/group/amibroker/

<*> To unsubscribe from this group, send an email to:
     amibroker-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
     http://docs.yahoo.com/info/terms/