I would urge all to take a look at the course on Trading using R with Interactive Brokers. This will surely answer some of the questions that are...
If you are interested in automated trading, you can also the try the Python IBridgePy API. Let me know if you have any issues either using R API...
For those who are interested in using R for trading on Interactive Brokers there is a nice course listed on their site on "Trader's Academy" page....
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