Hi Terry,
Appreciate the help.....
From all the input it appears that this is he procedure I should follow..
Run data Purify to see how many holes I have in the database.
As I am using QP3,I can not use quote editor and should notify QP3 of "bad" data.Which there seems to be a fair share of.
Assuming I am not missing large chunks of data,I should pad and align when running the scan or explore.Does pad and align work with explore and/or scan?And most important,I assum pad and align will work with QP data..
Thanks for the help
Allan
----- Original Message -----
From: Terry <[EMAIL PROTECTED]>
Date: Sunday, October 1, 2006 11:53 am
Subject: RE: RE: [amibroker] Scan and Settings
To: [email protected]
> What exactly does pad and align do??
>
>
>
> It takes a reference signal of your choosing, usually a widely used
> index such as $COMP that is unlikely to have data holes.
>
> Then, it compares the data for each stock you have to this "benchmark"
> to decide if there is missing data. If so, then the missing bar
> of data
> is replaced with the previous bar's value. This is much better for
> indicators than having a ZERO value for that bar, which is what
> you get
> if data is missing (not uncommon).
>
>
>
> If you trade any foreign securities be aware that they will have
> different market days than U.S. stocks so pick your reference index
> accordingly.
>
>
>
> Here is what the HELP file says about "Pad & Align". PS: HELP really
> does HELP!
>
>
>
> Pad and align to reference symbol
>
> When this is turned on, all symbols' quotes are padded and
> aligned to
> reference symbol. Note: by default this setting is OFF. Use
> responsibly.It may slow down backtest/exploration/scan and
> introduce some slight
> changes to indicator values when your data has holes and holes are
> filled with previous bar data. The feature is intended to be
> used when
> your system uses general market timing (generates global signals based
> on data and/or indicators calculated using Foreign from 'reference'
> symbol) or when you are creating composites out of unaligned
> data. Note:
> if reference symbol does not exist, data won't be padded.
>
> --
>
> Terry
>
> -----Original Message-----
> From: [email protected]
> [mailto:[EMAIL PROTECTED] On
> Behalf Of [EMAIL PROTECTED]
> Sent: Sunday, October 01, 2006 08:59
> To: [email protected]
> Subject: Re: RE: [amibroker] Scan and Settings
>
>
>
> AAAAGGGHHHHHHHHH!!!!!!!!!!!!!
>
>
>
> As usual,you come to my rescue.How in the world was I or anyone
> supposedto know that????
>
>
>
> To wrap it up,you cant set the dates in settings for Scan and
> you cant
> use quote editor for QP3 data.
>
>
>
> Which means I will have spikes in my indicies,industries and
> sectors.....
>
>
>
>
>
>
>
> Allan
>
> ----- Original Message -----
> From: Steve Dugas
> Date: Saturday, September 30, 2006 9:51 pm
> Subject: Re: RE: [amibroker] Scan and Settings
> To: [email protected]
>
> > Hi Allan - I don't believe that AB will allow you to make
> > changes via Quote Editor if your DB was created with the QP
> > plugin - I think data is retrieved exclusively from the QP
> > database. You could confirm this with AB support just to be
> > sure, but I think you would need to report the errors to QP,
> > then you could retrieve the corrections along with new data.
> >
> > Steve
> > ----- Original Message -----
> > From: [EMAIL PROTECTED]
> > To: [email protected]
> > Sent: Saturday, September 30, 2006 8:31 PM
> > Subject: Re: RE: [amibroker] Scan and Settings
> >
> >
> > hey Joe,
> > No need for the apology..I have tried everything else ,it was
> > worth a shot...I think Pauls idea was probably the fix,though
> it
> > should not have to be coded.Unfortunately.I got sidetracked on
> > DataPurify and Quote Editor.I cant get quote editor to
> function
> > and add missing quotations.As you probably know,there is no
> add
> > button in Q.E,and you need to click on the editor anywhere but
> > on NEW to add...Unfortunately,that doesnt work either...
> >
> > I am starting to think building industries and sectors is not
> > meant to be:)
> >
> >
> >
> > Allan
> >
> > ----- Original Message -----
> > From: Joe Landry
> > Date: Saturday, September 30, 2006 8:11 pm
> > Subject: Re: RE: [amibroker] Scan and Settings
> > To: [email protected]
> >
> > > I apologize. I am misinformed and as consequence I
> > misinformed
> > > anyone who read my
> > > previous note. I just tried building a watch list average
> > with
> > > a limited range price array as the current symbol and it
> > > did NOT work as I expected. Back to the drawing board.
> > >
> > > JOE
> > > ----- Original Message -----
> > > From: Joe Landry
> > > To: [email protected]
> > > Sent: Friday, September 29, 2006 6:44 PM
> > > Subject: Re: RE: [amibroker] Scan and Settings
> > >
> > >
> > > 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: Friday, September 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
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
>
>
>
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
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