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Viewing User Profile for: andrei
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Joined: Aug 24, 2013 12:04 PM
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andrei has contributed to 1 posts out of 19043 total posts (0.01%) in 2,064 days (0.00 posts per day).

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Trying to get the S&P500 stock components with below logic:

history(q,char(stocks(n)),{'01/01/2011','08/23/2013'},'Daily');

where stocks is a cell array with all 500 components.
put this in a loop, with 4 sec delay, and the history command will stop returning the total amount of days for a specific symbol.

For example:

Symbol: EXPD, Nr.of days collected:665
Symbol: EXPE, Nr.of days collected:665
Symbol: F, Nr.of days collected:1

Symbol: CVS, Nr.of days collected:665
Symbol: CVX, Nr.of days collected:1

Symbol: CBE, Nr.of days collected:665
Symbol: CBG, Nr.of days collected:14

each time the program will reach these particular symbols, the history will stop returning the proper amount of days requested.
The workaround is to close-down Matlab (IQF connection may remain open) and open it again.

Are there any troubleshooting means, any diagnostic commands that could help - for example assess if the connection to IQFeed is still operational ?

I assume I'm not the only one trying to download the components of an index from within matlab - are there any working samples available anywhere?

Thx


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