Here's a link to another blog compiling information and recommendations are introductory books on R (not statistics books that use R). I thought this might be useful for people.http://csgillespie.wordpress.com/2011/01/28/r-programming-books-updated/

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Unless you're using an out-of-memory solution to manage large data objects (such as the RevoScaleR package in Revolution R Enterprise), then R always allocates memory for every object in your working session. If you're working with many objects (or even just a few large objects) then you'll need to take care to manage R's memory usage to avoid the...

I just published Java based code to pull tick data from Interactive Brokers. There are thousands tools to get tick data from IB, but I had one feature in mind. You can get maximum 50 quotes per second from Interactive Brokers (its IB limitation for TWS API) . Imagine a situation, when there is a

I have just discovered yet another public data site www.datamarket.com. Most of the data are time-series. It collects together things like World bank, Eurostat, Gapminder into the one place. It also allows you to download data as csv files or to creat...

Whenever a post on this blog requires some data analysis and perhaps a chart or two, my tool of choice is the versatile statistical programming package R. Developed as an open-source implementation of an engine for the S programming language, R is therefore free. Since commercial mathematical packages can costs thousands of dollars, this alone