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"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"Thank you so much - awesome feed, awesome service!" - Comment from Greg via Email
"I was with ******* for 4 years at $230 a month, this is a huge savings for me, GOD BLESS YOU PEOPLE," - Comment from T.S. via Email
"I used to have *******, but they are way more money for the same thing. I have had no probs with data from DTN since switching over." - Comment from Public Forum Post
"Awesome response, as usual. It is a sincere and refreshing pleasure to do business with DTN, compared to your competition." - Comment from Ryan
"I started a trial a few weeks back before the market went wild. DTN.IQ didn’t miss anything and beat my other provider. I decided to stay with you because of the great service through all the volatility." - Comment from Mike
"I use IQ Feed, Great stuff as far as data analysis information, storage and retrieval is concerned." - Comment from Public Forum
"IQ feed is brilliant. The support is mind-bending. What service!" - Comment from Public Forum Post
"I have to tell you though that using the IQFeed API is about the easiest and cleanest I have seen for some time." - Comment from Jim
"DTN feed was the only feed that consistently matched Bloomberg feed for BID/ASK data verification work these past years......DTN feed is a must for my supply & demand based trading using Cumulative Delta" - Comment from Public Forum Post
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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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