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Hi Tomasz,
I probably didn't explain this very well.
- You raise a good point. Does the 'wait for backfill' flag affect
scans/explorations only, or does it affect all RT access. The RT
access I am most interested in here involves loading a RT chart
through automation and accessing the most recent quote for the chart.
My understanding is that at present, I do not know if I have the most
recent bar for the RT chart or not.
- My second question was really related to this very idea. If I use
the Quotations collection for a RT chart, how do I know when the
plugin has the most recent data? Does having the 'wait for backfill'
flag set mean that when I load a new RT chart via automation, the
Quotations object won't be available until it has been brought up to
date via the plug-in? If not, perhaps an argument like
Stock.Quotations(true).Item...
where true is the equivalent of the 'wait for backfill' flag would
mean that the Quotations collection refreshes through the RT plug-in
before becoming available to your automation flag.
- Last thought/question on this topic. Is it safe to say that
limiting the size of "Number of Bars to load" in the database
settings to a small number would greatly speed the backfill process?
Regards,
Gordon
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
wrote:
> Hello,
>
> 1. When 'wait for backfill' flag is set then plugin always
> backfills the bars that are missing. Depending on how
> many bars are missing this will take different amount of time.
> You have no control over it.
> You can decrease the time needed by running scan everyday
> limiting that way the amount of data that need to be retrieved
> in one run.
>
> 2. I don't understand your second question. Please re-phrase.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "Gordon" <amibroker@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Thursday, October 09, 2003 4:04 AM
> Subject: [amibroker] New ESignal plugin/Quotes
>
>
> > Hi,
> >
> > I've installed the new ESignal plugin. It is indeed very fast.
> >
> > I have a couple of questions -- when I do a scan in RT, is there
a
> > way to limit the amount of data the plugin backfills when you
have
> > the box checked to wait for backfill? I reduced the number of
quotes
> > in the database settings, but the first pass through my list
still
> > seems to be very slow due to the number of quotes it is
retrieving.
> >
> > Also, does the new plugin change the status of getting a quote
for a
> > loaded stock -- i.e. the ability to get the current vs. most
recently
> > accessed quote?
> >
> > Thanks,
> >
> > Gordon
> >
> >
> >
> > Send BUG REPORTS to bugs@xxxx
> > Send SUGGESTIONS to suggest@xxxx
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