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RE: [amibroker] Cumulative Volume Indicator



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Interesting results:

begvol = TimeNum() == 093500;
endvol = TimeNum() == 114500;
CountWhile = Flip(begvol,endvol);
Cumvol = IIf(CountWhile,Sum(V,BarsSince(begvol)),0);

Plot(Cumvol,"cumvol",1);

--
Terry

-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf
Of Eric and Christy Wagner
Sent: Saturday, December 09, 2006 16:23
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Cumulative Volume Indicator

I am trying to create a cumulative volume indicator based upon 
certain times during the day.  For example,  I would like to know 
the premarket volume of spy from 8amEST to 092000 EST.  This would 
be  cumulative from 8 to 9:20 and then it would go to 0 and start 
over every day from 0 at 8AM EST.  This is what I have so far:

Sumvol = Cum(V);
begvol = TimeNum() == 093500;
endvol = TimeNum() == 114500;

cumvol = IIf(TimeNum() >= begvol AND TimeNum()<= endvol, Sumvol,0);

When I plot this I get a blank window.  Would anyone like to help me 
out?

Thanks
Eric






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