Join the 80,000 other DTN customers who enjoy the fastest, most reliable data available. There is no better value than DTN!

(Move your cursor to this area to pause scrolling)




"I use IQ Feed, Great stuff as far as data analysis information, storage and retrieval is concerned." - Comment from Public Forum
"Very impressed with the quality of your feed - ******* is a real donkey in comparison." - Comment from A.C. via Email
"I was on the phone with a friend who uses CQG and right after the Fed announcement, CQG was as much as 30 seconds behind DTN.IQ. Some quotes were off by as much as 15-18 cents. Your feed never missed a beat." - Comment from Roger
"I just wanted to let u know that your data feed/service is by far the best!!! Your unfiltered tick data is excellent for reading order flow and none of your competitors delivers this quality of data!" - Comment from Peter via Email
"You have an excellent product !!!!!!" - Comment from Arely
"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 cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles
"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
"IQ feed works very well, does not have all of the normal interruptions I have grown used to on *******" - Comment from Mark
"I had always used ******* but for the past 2 weeks have been trying DTN IQFeed. Customer support has been extraordinary. They call just to make sure your problem hasn't recurred." - Comment from Public Forum
Home  Search  Register  Login  Recent Posts
Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather
Follow DTNMarkets on Twitter
DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter
»Forums Index »NEW IQFEED FORUMS »New IQFeed Forum »Streaming nterval bar with H type
Author Topic: Streaming nterval bar with H type (2 messages, Page 1 of 1)

damarcant
-Interested User-
Posts: 11
Joined: Oct 4, 2017
Posted: Apr 21, 2020 09:58 AM          Msg. 1 of 2
What is the meaning of the H type of interval bars?

The documentation says:

"[Type] - Update type; 'U' - updated interval bar; 'H' - complete interval bar from history; 'C' - complete interval bar from stream"

But I do not really know what "from history" means.

Maybe that the received bar is not a real time bar?

altmany
-Interested User-
Posts: 73
Joined: Jul 30, 2018

IQML - IQFeed-MATLAB connector

Posted: Apr 21, 2020 10:06 AM          Msg. 2 of 2
The intervalbars query is special in the sense that it returns both historic and live (streaming) bars, depending on the parameters in the request. In most case, you will receive a bunch of historic bars (H) immediately, followed by live streaming bars (C/H), one at a time, as they become available (depending on your interval duration).
Yair Altman
IQML - IQFeed-MATLAB connector
https://UndocumentedMatlab.com/IQML

I am not a DTN employee; my post reflects my personal opinion
 

 

Time: Tue May 7, 2024 9:04 PM CFBB v1.2.0 8 ms.
© AderSoftware 2002-2003