Monthly Archives: October 2010

Handling Large Datasets in R

Handling large dataset in R, especially CSV data, was briefly discussed before at Excellent free CSV splitter and Handling Large CSV Files in R. My file at that time was around 2GB with 30 million number of rows and 8 columns. Recently I started to collect and analyze US corporate bonds tick data from year...

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DEADLINE EXTENDED — CFP: Special Issue in JSS for "Magnetic Resonance Imaging in R"

October 26, 2010
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DEADLINE EXTENDED — CFP: Special Issue in JSS for "Magnetic Resonance Imaging in R"

Magnetic Resonance Imaging in R The deadline for submission to the Special Issue of the Journal of Statistical Software(JSS - http://www.jstatsoft.org) has been extended to November 14, 2010.All MRI modalities are welcome, for example, structural ...

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R nominated for best open-source project in New Zealand

October 26, 2010
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The R project, born in New Zealand in 1993, has been nominated as the best open-source project in the New Zealand Open-Source Awards 2010. R's co-creator Ross Ihaka talks about the project in this article by the New Zealand Herald: Ross Ihaka from the University of Auckland started developing R 20 years ago, but it took off about a...

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Example 8.11: violin plots

October 26, 2010
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Example 8.11: violin plots

We've continued to get useful feedback and ideas from our posts on the combination dotplot/boxplot and other ways to craft similar displays. Another notion is the violin plot, which combines a boxplot and a (doubled) kernel density plot. While the ba...

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Upcoming R courses from Statistics.com

October 26, 2010
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The online training provider Statistics.com has three great courses based on R coming up in the next few months: Nov. 5 - Dec. 3: "Graphics in R," with Paul Murrell Nov. 20 – Dec. 18: Support Vector Machines in R" with Dr. Lutz Hamel Dec. 17 - Jan. 22: "Geostatistics in R" with Prof. David Unwin The courses take...

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Different results from different software

October 26, 2010
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I’ve had a few questions on this topic lately. Here is an email received today: I use Eviews to estimate time series, but I have been checking out R recently, and your Forecast package. I cannot understand why 2 similar equations in Eviews and R are giving different estimated output. Your insights will be invaluable

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R User Groups 2010-10-25 21:14:50

October 25, 2010
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R User Groups 2010-10-25 21:14:50

Videos from the October meeting “Text Mining with R” of the Los Angeles R users group:Rob Zinkov, “Text Mining with R”:Ryan Rosario, “Accessing R from Python using RPy2″:

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Algorithmic Trading with IBrokers

October 25, 2010
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Algorithmic Trading with IBrokers

Kyle Matoba is a Finance PhD student at the UCLA Anderson School of Management.  He gave a presentation on Algorithmic Trading with R and IBrokers at a recent meeting of the Los Angeles R User Group.  The discussion of IBrokers begins near th...

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The language of Statistics

October 25, 2010
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R is the lingua franca of Statistics: R code and R packages is the means by which statisticians communicate ideas and methods for statistical analysis. The reasons why are discussed in this article, but it also begs the question: what's wrong with the spoken or written word? How Statistics and Probability relate to the English language is the subject...

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R API to Interactive Brokers Trader Workstation

Interactive Brokers via Matlab was mentioned at the old post Matlab trading code, IBrokers: R API to Interactive Brokers Trader Workstation is the R package I realize for algo trading API. Should you are also interested, you can watch the following sh...

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