|
PureBytes Links
Trading Reference Links
|
Hi John,
Maybe you could test this by setting up a new database, then inserting
a few symbols you are concerned about and then getting/filling the
quotes for the new database. Then compare that data with the data you
cherish and see if it differs unacceptably. The way things seem to be
a moving target these days, I recommend a test to be sure.
Best Wishes,
Mark
--- In amibroker@xxxxxxxxxxxxxxx, "John Larsson" <amibroker@xxxx>
wrote:
> Tomasz, I get the impression that backfill will overwrite if the
data
> from the vendor is different. I was reading the manual before I
> posted and this is what it says:
>
> "...Backfill is useful:
> cleaning up bad ticks (when you see a bad tick you may try forcing
> backfill in hope that data vendor has cleaned up its database and
you
> will get fixed data - works well for eSignal that really appears to
> fix bad ticks after they happen)"
>
> I strongly feel this means data will be overwritten if the data in
> the stream differs from the database. Am I missunderstanding?
>
> I use eSignal.
>
> John
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko"
<amibroker@xxxx>
> wrote:
> > John,
> >
> > It depends on the plugin (data source) you are using
> > but in most cases data are backfilled automatically only for all
> missing plus last 3 bars.
> > So your manual edits will not be lost and you don't need to worry.
> >
> > Best regards,
> > Tomasz Janeczko
> > amibroker.com
> > ----- Original Message -----
> > From: "John Larsson" <amibroker@xxxx>
> > To: <amibroker@xxxxxxxxxxxxxxx>
> > Sent: Thursday, May 13, 2004 7:18 PM
> > Subject: [amibroker] Can I limit forced backfil to just a short
> time period
> >
> >
> > > Hello, I have manually fixed some bad ticks and I don't want
that
> > > data to be overwritten. Still, I want to force a backfill but
> only
> > > over the last couple of days or bars. Is there a way to do this?
> > >
> > > John
> > >
> > >
> > >
> > >
> > > Send BUG REPORTS to bugs@xxxx
> > > Send SUGGESTIONS to suggest@xxxx
> > > -----------------------------------------
> > > Post AmiQuote-related messages ONLY to:
amiquote@xxxxxxxxxxxxxxx
> > > (Web page: http://groups.yahoo.com/group/amiquote/messages/)
> > > --------------------------------------------
> > > Check group FAQ at:
> http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
------------------------ Yahoo! Groups Sponsor ---------------------~-->
Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar.
Now with Pop-Up Blocker. Get it for free!
http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/GHeqlB/TM
---------------------------------------------------------------------~->
Send BUG REPORTS to bugs@xxxxxxxxxxxxx
Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
-----------------------------------------
Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
(Web page: http://groups.yahoo.com/group/amiquote/messages/)
--------------------------------------------
Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/amibroker/
<*> To unsubscribe from this group, send an email to:
amibroker-unsubscribe@xxxxxxxxxxxxxxx
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|