Monthly Archives: February 2010

How to call C++ from R with ease

February 19, 2010
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At last night's meeting of the ACM Student Chapter at the University of Chicago, DIrk Eddelbuettel gave an invited guest lecture, "Programming with Data: Using and Extending R". I wasn't there myself, but Dirk has already posted his slides, and they're a treat. After a backgrounder on R itself (BTW, I'm flattered he referenced my Introduction to R talk...

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Newspaper flubs probability calculation

February 19, 2010
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That headline's right up there with "Dog Bites Man" for shock value, but the Daily Express in the UK isn't one to let mere probability stand in the way of a sensational headline like "Mum beats odds of 50 million to one to have 3 babies on same date". As Ben Goldacre helpfully explains, the probability is actually a...

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U of C ACM talk

February 18, 2010
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Fellow GSoC mentor and local ACM masterminder Borja Sotomayor had invited me a few months ago to give a talk at the ACM chapter at the University of Chicago. Today was the day, and the slides from the 50-minutes talk on R and extending R with Rcpp ar...

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U of C ACM talk

February 18, 2010
By

Fellow GSoC mentor and local ACM masterminder Borja Sotomayor had invited me a few months ago to give a talk at the ACM chapter at the University of Chicago. Today was the day, and the slides from the 50-minutes talk on R and extending R with Rcpp are ...

Read more »

U of C ACM talk

February 18, 2010
By

Fellow GSoC mentor and local ACM masterminder Borja Sotomayor had invited me a few months ago to give a talk at the ACM chapter at the University of Chicago. Today was the day, and the slides from the 50-minutes talk on R and extending R with Rcpp ar...

Read more »

Corruption indicators in Mexico

February 18, 2010
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Corruption indicators in Mexico

As you can see there is only a slight positive correlation between the corruption index of the Mexican chapter of Transparency International and the percentage of students who cheated on the Grade 6 ENLACE test*. What I find surprising is that there is...

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Joining R-bloggers

February 18, 2010
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Joining R-bloggers

Upon request by the blog administrator, Tal Galili, I have joined R-bloggers, which aggregate blog entries about R into a central place. I feel I have much more to learn than to teach about R (as can be seen from earlier comments on my R programs in Introducing Monte Carlo Methods with R). As I

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Press Enter in LyX Sweave as You Wish

February 18, 2010
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Press Enter in LyX Sweave as You Wish

or a long time I’ve been wondering why we are not able to use Enter in the LyX Scrap environment which was set up by Gregor Gorjanc for Sweave. Two weeks ago, I (finally!) could not help asking Gregor about this issue, as I’m using “LyX + Sweave” more and more in my daily work.

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R IDE and debugger now available for 64-bit Windows; Webinar Tuesday

February 18, 2010
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We've just upgraded REvolution R Enterprise to version 3.1 and expanded the available platforms to include 64-bit Windows. (REvolution R Enterprise is our subscription-based distribution of R.) This means that you can now create R programs on Windows that use all of your available memory, instead of being constrained by the 3Gb limit imposed by 32-bit versions of Windows....

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SPSS Co-Founder Tex Hull Joins REvolution Computing

February 18, 2010
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We're proud to announce that Tex Hull, who together with REvolution CEO Norman Nie created the first version of SPSS, has joined the REvolution team. Tex will be working with Norman and our CTO David Champagne to take REvolution R Enterprise to the next level, specifically to improve its scalability to handle very large data sets. You can read...

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