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[amibroker] Re: Summing volume



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thanks much.  any ideas on why i get a syntax error with the code 
below? If i include the code within the "IF" clause with out the 
actualy "IF" block, it works fine. but with the "IF" clause there i 
get the following error:
"Line 15, Column 2:
   	AddColumn(fCumVol,"fCumVol", 1.0);

   	AddColumn(bBuy,"Buy", 1.0);

	Buy = True;

}
-^

Error 3.
Condition in IF, WHILE, FOR statements
has to be Numeric or Boolean type.
You can not use array here,
please use [] (array subscript operator)
to access array elements"

Here is the code:
---------------------------------------------------------
stockFloat = 19100000;

fCumVol = Ref( fCumVol = Sum( V, 5 ), -1);

bBuy = 	( V > ( stockFloat ) ) AND 
		( fCumVol < stockFloat ) AND
		( C > O ) ;

if ( bBuy )
{
	Filter = 1;
   	AddColumn(fCumVol,"fCumVol", 1.0);
   	AddColumn(bBuy,"Buy", 1.0);
	Buy = True;
}

--- In amibroker@xxxxxxxxxxxxxxx, Terry <MagicTH@xxxx> wrote:
> Try this:
> CumVol = Sum( ref(V,-1), 5 );
> 
> An Explore is like a back test in that you get the same results 
without the
> Report. You can add as many AddColumn statements as you want to 
see things
> like your Buy/Sell/Short/Cover signals, Volume, Close, any 
variable you have
> in your code.
> -- 
> Terry
> 
> 
> From: "virtuouz_pagan" <dimension@xxxx>
> Reply-To: amibroker@xxxxxxxxxxxxxxx
> Date: Thu, 21 Oct 2004 03:34:17 -0000
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] Re: Summing volume
> 
> 
> actually, it's almost what i needed.
> I am using the BackTest function and would like to see the fCumVol
> value at each signal. I was trying to use the "printf" function, 
but
> do not see anything printed in the Interpretation or NotePad 
window.
> What would be better however, is if i could add a column to the
> backtest grid/table, similar to what you suggested for the Explore
> function.  Is that possible?
> 
> sorry for the barrage of questions...
>  
> --- In amibroker@xxxxxxxxxxxxxxx, Terry <MagicTH@xxxx> wrote:
> > Correct
> > 
> > Filter = 1;
> > AddColumn(fCumVol,"fCumVol",1.0);
> > 
> > Then click Explore in AA
> > -- 
> > Terry
> > 
> > 
> > From: "virtuouz_pagan" <dimension@xxxx>
> > Reply-To: amibroker@xxxxxxxxxxxxxxx
> > Date: Thu, 21 Oct 2004 03:08:05 -0000
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: [amibroker] Summing volume
> > 
> > 
> > On processing the current bar, i would like to determine the
> > cumulative volume of the last 5 bars (including the current).
> > Would the folliwng do this?
> > 
> >   fCumVol = Sum( V, 5 );
> > 
> > Second question.  If i wanted to print out debug statements to 
see
> > the above value as each bar is processed, how can i do that?
> > 
> > thank you.
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > Check AmiBroker web page at:
> > http://www.amibroker.com/
> > 
> > Check group FAQ at:
> > http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> > 
> > 
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