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 [email protected], "global_investor" <[EMAIL PROTECTED]> 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 [email protected], "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 > 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 <*> To visit your group on the web, go to: http://groups.yahoo.com/group/amibroker/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
