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»Forums Index »Product Support »Data and Content Support »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: 50
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
 

 

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