Re: RE: [amibroker] Scan and Settings

Sat, 30 Sep 2006 18:22:39 -0700

No, not jesting.  You can take price array, export it in a comma separated variable file and with a text editor or Excel,
keep the most current 500 bars.  Store this in a new CSV file for your range limited variable, rename it,
import it with the import wizard and you can make a short price array. AB, as I understand it, will reserve memory
based on the length of the current symbol and operate within those 500 bars including an ATC. 
A word of caution I didn't not check this out this morning but I believe that's how it could be done.
 
You could check it out easily enough by using a recent IPO or ETF with one years worth of data,
HTH 
Joe  
----- Original Message -----
Sent: Friday, September 29, 2006 8:07 PM
Subject: Re: RE: [amibroker] Scan and Settings

Joe,surely you jest:)
 
are you suggesting that by having a stock in the current window(charting),that is how you control the history settings for scan????
 
I think that is what you are saying.All I know is that I have attempted to limit the scan to 365 days,and I get 10 years regardless of what I do.
 
On a side note,I am getting negatove volume for my AT composites
 
Allan
 


----- Original Message -----
From: Joe Landry <[EMAIL PROTECTED]>
Date: Friday, September 29, 2006 7:59 pm
Subject: Re: RE: [amibroker] Scan and Settings
To: [email protected]

> IMHKnowledge.....The way to limit the number of bars in the ATC
> is to choose a stock with a limited history
> for your curent symbol in the selected stock window. AB then
> runs and limits the calcs to the number of bars in that ticker.
> There is a way to create synthetic tickers that have a selected
> length. In fact using selected symbols with limited number
> of bars does wonders to increase the speed of the
> backtest/optimization, so I've been told... but I don't know how
> to do it.
>
> In fact the most screw ups I've ever done in creating ATCs is to
> have a ticker with a limited number of bars
> as the current symbol.
>
> HTH
> Joe
> ----- Original Message -----
> From: [EMAIL PROTECTED]
> To: [email protected]
> Sent: Friday, September 29, 2006 5:51 PM
> Subject: Re: RE: [amibroker] Scan and Settings
>
>
> Hi Terry,
> No matter what I do,my composites are set to the full history
> which is apx 10 years
>
> Allan
>
> ----- Original Message -----
> From: Terry
> Date: Friday, September 29, 2006 6:23 pm
> Subject: RE: [amibroker] Scan and Settings
> To: [email protected]
>
> > I do this all the time. I set/change the date range,
> expecting
> > it to
> > auto-select, but it doesn't. You ALSO have to click the
> button beside
> > the date range.
> > --
> > Terry
> >
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[EMAIL PROTECTED] On
> > Behalf Of matrix10014
> > Sent: Fri! day, Sep tember 29, 2006 15:37
> > To: [email protected]
> > Subject: [amibroker] Scan and Settings
> >
> > Hi,
> > Whwn i run my ATC's in Scan and have my settings set for 365
> > days,for
> > some odd reason the composite i am creating goes back 10
> > years.What do
> > i do to limit the composite to 365 days??
> >
> > Thanks,
> >
> > Allan
> >
> >
> >
> >
> >
> >
> > Please note that this group is for discussion between users only.
> >
> > To get support from AmiBroker please send an e-mail directly
> to
> > SUPPORT {at} amibroker.com
> >
> > For other support material please check also:
> > http://www.amibroker.com/support.html
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
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