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"Thank God for your Data Feed as the only Zippers I see are on my pants (LOL), and no more 200 pip spikes to mess up charts." - Comment from Spiro via Email
"There is no doubt that IQFeed is the best data provider. I am very satisfied with your services. And IQFeed is the only one that I would recommend to my friends. Now, most of them are using your product in China." - Comment from Zhezhe
"I am very pleased with the DTNIQ system for quotes and news." - Comment from Larry
"I am enjoying the feed very much - so superior to the broker provided feed I was previously using." - Comment from George
"Thanks for the great product and support. During this week of high volume trading, my QuoteTracker + IQ Feed setup never missed a beat. Also, thanks for your swiftness in responding to data issues. I was on ******* for a few years before I made the switch over early this year, and wish I had done it a long time ago." - Comment from Ken
"Very impressed with the quality of your feed - ******* is a real donkey in comparison." - Comment from A.C. via Email
"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"I just wanted to let you know how fast and easy I found it to integrate IQFeed into our existing Java code using your JNI client. In my experience, such things almost never go so smoothly - great job!" - Comment from Nate
"I am a hedge fund manager here. It’s funny, I have a Bloomberg terminal and a Bridge feed, but I still like having my DTN feed!" - Comment from Feras
"For anyone considering using DTN.IQ for a data feed, my experience with the quality of data and the tech support has been very positive." - Comment from Public Forum
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ssg10
-Interested User-
Posts: 1
Joined: May 8, 2013
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Posted: May 8, 2013 03:22 AM
Msg. 1 of 4
I tried to open up connection with iqfeed but it has problems:
Can somebody help?
>> Q=iqf(4xxxx,6xxxx) Warning: Out of range or non-integer values truncated during conversion to character. > In iqf.iqf>iqf.iqf at 44 Warning: Out of range or non-integer values truncated during conversion to character. > In iqf.iqf>iqf.iqf at 44
Q =
iqf with properties:
User: 4xxxx Password: 6xxxxxx Port: {[1x1 System.Net.Sockets.Socket]} PortName: {'Admin'}
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DTN_LorenF
-DTN Technical Support-
Posts: 228
Joined: May 11, 2004
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Posted: May 8, 2013 09:07 AM
Msg. 2 of 4
SSQ10
Is this the first time you have setup the software and connection?
We do recomend you contact MATHLAB support for additional support, The will assist you with the software and connection.
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mongfa
-Interested User-
Posts: 4
Joined: Jul 27, 2014
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Posted: Jul 27, 2014 12:41 PM
Msg. 3 of 4
. Edited by mongfa on Jul 27, 2014 at 12:44 PM
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altmany
-Interested User-
Posts: 73
Joined: Jul 30, 2018
IQML - IQFeed-MATLAB connector
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Posted: Mar 12, 2019 06:01 AM
Msg. 4 of 4
In case anyone stumbles on a similar error, I believe that it was caused because the Matlab iqf function (part of the Trading Toolbox) expects the username and password in string format, i.e. iqf('1234','9876') and not iqf(1234,9876). Instead of using the Trading Toolbox to connect Matlab to IQFeed, consider using the IQML connector. IQML was optimized for run-time performance (speed), ease-of-use, and reliability. It comes with extensive documentation, and supports the entire IQFeed API. IQML works with the core Matlab; no toolbox is required. It works on all Matlab releases since R2008a, on both Windows and Mac, using IQFeed 5.0 or newer. IQML was developed independently as a commercial 3rd-party product; it is not affiliated with MathWorks or DTN. The connector is actively maintained and supported. Main features: - both blocking (snapshot) and non-blocking (streaming) data queries
- parallelized requests for super-fast data query responses
- live Level 1 top-of-book market data (quotes and trades)
- live Level 2 market-depth data
- historical and intraday market data (individual ticks or interval bars)
- fundamental info on assets
- options and futures chains lookup (with market data, Greeks)
- symbols and market codes lookup
- news headlines, story-counts, and complete news stories, with user-specified filters
- user-defined Matlab callback functions to IQFeed messages and market triggers
- user-defined alerts on streaming market events (news/quotes/interval-bar/regional triggers)
- connection stats (continuous update)
- programmatic connect/disconnect
https://UndocumentedMatlab.com/IQML Note: I am not a DTN employee; my post reflects my personal opinion and not necessarily DTN's
- Yair IQML - IQFeed-Matlab connector https://UndocumentedMatlab.com/IQML
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