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Global investor,
Do you mean IQfeed is fine for intraday data usage?
I was considering moving to IQfeed (but stopped because of these
issues discussed here) and I only use minute bars in my chart and AA.
So I wonder whether you have some on-hand knowledge about it?
Thanks.
ggoom
--- In amibroker@xxxxxxxxxxxxxxx, "global_investor"
<independent_opinion@xxx> wrote:
>
> Thomasz,
>
> > I wrote already that I will revisit the IQFeed plugin because they
> released...
>
> I would highly appreciate that. In the meantime users who want to
> run Amibroker with IQFeed to display realtime charts with timeframe
> daily (rather than just intraday/minute data charts) can still use the
> old IQFeed plugin 1.5.5; of course with an old IQFeed client
> connector (IQFeed 2.3.0.1). This old plugin has the wellknown
> problem that an attempted backfill might suddenly hang forever, but as
> already discussed here on this board and given your credible
> statements, TJ, the "hanging backfill" problem is very likely caused
> by inadequacies of the IQFeed API. I think you remember the question
> whether it would be possible to add some sort of timeout handling and
> re-attempt a backfill request after a timeout expired. It
> was a legitimate question, but please note, you're asked such
> questions because you have expertise as developer, and not with the
> the intention to blame you for such problems or with the expectation
> that you fix the problems DTN is responsible for!
>
> As for the currently latest IQFeed plugin (1.6.0) offered on the
> Amibroker website, it would be usable in daily timeframe mode if the
data
> mixup issue was fixed. As described, from the user's perspective it
> looks as if this problem has nothing to do with the IQFeed API but
> more with the way how the IQFeed plugin handles concurrent access to
> its internal data structures, when quotes/time series are requested
> in daily timeframe mode both from Amibroker's normal charting window
> and concurrently from the auto analysis mode.
>
>
> Also, another issue with respect to IQFeed plugin (1.6.0) is whether
> the plugin can cope with requests for invalid symbols. Or put
> differently, is it ruled out that the plugin can get into an invalid
> state when there are backfill requests for invalid or expired symbols?
> This is only a question, not a reported problem.
>
> And last but not least, if I remember correctly, IQFeed plugin 1.6.0,
> together with IQFeed API 4.1.0.0, did not solve the "hanging backfill"
> problem, but if "data mixup/concurrent access" issue was solved, it
> would be usable and users could migrate from the old IQFeed plugin
> 1.5.5 to a newer one.
>
>
>
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@> wrote:
> >
> > Hello,
> >
> > I wrote already that I will revisit the IQFeed plugin because they
> released
> > new version of API that they say fixes a lot of old problems and I
> will need to work on it anyway. Then I will
> > take a look at the other problems you have reported.
> >
> > Best regards,
> > Tomasz Janeczko
> > amibroker.com
>
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