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Almost everything is an array. You are simply evaluating every bar (every
day) at the same time. Each bar gets a value that you may consider a
boolean. Itıs just an array of boolean values, 1 for each bar or day in your
case. This is actually what you want. 1 boolean value for each day which is
held in an array of all boolean values for all days.
If you have a loop you access each bar with a subscript[i]
--
Terry
From: "virtuouz_pagan" <dimension@xxxxxxxxxxxxx>
Reply-To: amibroker@xxxxxxxxxxxxxxx
Date: Thu, 21 Oct 2004 21:43:04 -0000
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: Summing volume
i am not getting this.
isn't the code below a boolean evaluation( 'AND' should evaluate to
a boolean)? how can this be an array?
bBuy = ( V > ( stockFloat ) ) AND
( fCumVol < stockFloat ) AND
( C > O ) ;
If the above evaluated to an array, what if i actually need bBuy to
evaluate to a boolean for a more complex script? how can that be
done?
thanks much
--- In amibroker@xxxxxxxxxxxxxxx, Terry <MagicTH@xxxx> wrote:
> In order of your code, here's a few comments:
>
> Your bBuy statement requires todayıs volume to be greater than the
last 5
> days Volume added together. Is that what you want?
>
> Your buy statement can be simply:
>
> Buy = bBuy; //which sets Buy = True when bBuy is True
>
> AddColumn statements should not be inside a conditional. I group
mine at the
> end of the code. If you only want to see them on certain bars the
use Filter
> as in:
>
> Filter = bBuy;
> AddColumn(....
> AddColumn(....
> --
> Terry
>
>
> From: "virtuouz_pagan" <dimension@xxxx>
> Reply-To: amibroker@xxxxxxxxxxxxxxx
> Date: Thu, 21 Oct 2004 04:29:27 -0000
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] Re: Summing volume
>
>
> 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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