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Hi Tomasz,
The video shows 1-minute settings; does it mean DTN IQ Feed only works well with intraday data? Cause it's a mess with daily data; errors, no-quotes, double-quotes, etc.
Thanks,
Louis
2008/5/1, Tomasz Janeczko <groups@xxxxxxxxxxxxx>:
"Local database storage" **MUST BE** enabled when using
IQFeed!
Otherwise data are NOT stored ANYWHERE.
It is ABSOLUTELY CRUICIAL to follow EXACTLY all
instructions.
The following video shows EXACTLY how IQFeed database should
be set up:
Each and every step needs to be followed
precisely.
----- Original Message -----
Sent: Thursday, May 01, 2008 4:02
PM
Subject: Re: [amibroker] Re: Backfilling
problem
Hi,
But if I disable the save the database as local, I
don't see the charts automatically; will this affect the
backtest?
Louis
2008/5/1, onelkm <LKMCD1@xxxxxxx>:
Louis
That sounds like what I have encountered also. I believe it is a
result of selecting "enable" to save the database as local in the
database settings, but I have not disabled this feature to check it
out. Not sure if it is something AB or IQ controls.
Larry
--- In amibroker@xxxxxxxxxxxxxxx, "Louis Préfontaine"
<rockprog80@xxx> wrote:
>
> Hi,
>
> The problem happens when I don't backfill for
some days. If I scan
everyday
> with a force backfill I don't see
a lot of problem, but if I forget
to do it
> for some days then
the backfill is partial (e.g. only for some
days, and
> there will
be a hole of days/weeks between two bars one next to the
other).
>
The big problem is that I used spx.xo as a reference symbol and
there
was
> such hole in the data (one bar was March 26 or 27 and the next
one
April 14)
> so each stock had the same problem. So right now
my database is
corrupted,
> and I don't know what to do except to
restart a new databse and
take about 5
> hours to set everything.
Maybe there is a simplier way to do the
job?
>
> I wonder
if this is a IQFeed problem or an AB problem. If it is a
IQFeed
>
problem, well I will change data provider cause it is a big problem!
>
> Louis
>
> 2008/4/29, onelkm
<LKMCD1@xxx>:
> >
> >
> >
Louis
> > I am also using IQ feed and have sometimes noticed
issues
> > backfilling. It seems to work ok for me when the market
is open,
> > backfills are less reliable when market is closed
which requires
> > forced backfills. Is your problem happening
primarily when the
market
> > is closed? are you using intraday
data or end of day?
> > Larry
> >
> > ---
In amibroker@xxxxxxxxxxxxxxx <amibroker%
40yahoogroups.com>,
"Louis
> >
Préfontaine"
> > <rockprog80@> wrote:
> >
>
> > > Hi,
> > >
> > > I have a big
problem backfilling my quotes. I am with IQ Feed,
and
> > when
I
> > > try to backfill the quotes using a random formula with
"Waiting
for
> > > backfill" option ticked, there are three
things that can happen:
> > >
> > > 1) The backfill
is ok (maybe 20%);
> > > 2) I get only the last 5-6 days and
there is a gap before that;
> > e.g. one bar
> > > is
April 04 and the next bar is April 20. Very problematic.
> > (maybe
60%);
> > > 3) The last 5-6 days are all phony quotes; e.g. the
5 days are
> > identical
> > > quotes with exact OHLC
(maybe 20%).
> > >
> > > This is a big problem for
me. Anybody has/had the same problem
or
> > know how
>
> > I can deal with this? (My guess is that running the formula
each
> > night
> > > could help for point 2, but I am
not sure for point 3.)
> > >
> > > Thanks,
>
> >
> > > Louis
> > >
> >
>
>
> >
>
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