Monthly Archives: July 2010

Building an R package (under Windows) without C, C++ or FORTRAN code

July 23, 2010
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Building an R package (under Windows) without C, C++ or FORTRAN code

Why build and R package? It basically boils down to be able to brag at your local pub that a new version of YOUR package is on CRAN as of 7 p.m. CET. But seriously, if you’ve produced some function that other people might benefit (or have ordered them) from using them, like your boss,

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Creating a Presentation with LaTeX Beamer – Equations and tikz

July 23, 2010
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Creating a Presentation with LaTeX Beamer – Equations and tikz

Many presentations created using LaTeX beamer included mathematical equations and these can be easily included in a presentation and in this post we will consider using the tikz package to add various interesting elements to equations, such as lines between text on a slide and part of an equation. Fast Tube by Casper The examples on this

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UseR! 2010 day 1

July 22, 2010
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Just a couple of quick notes about the first day of talks at useR! 2010. It's been a jam-packed schedule -- so many good talks to see and people to meet, I just wish I had more time for it all! One stand-out for me so far has been Frank Harrell's keynote lecture Information Allergy, on the dangers of...

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Quick scatterplot with associated histograms

July 22, 2010
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Quick scatterplot with associated histograms

R can produce some beautiful graphics, and there are some excellent packages, such as lattice and ggplot2 to represent data in original ways.  But sometimes, all you want to do is explore the realtionship between pairs of variables with the minimum of fuss. In this post we’ll use the data which we imported in the

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Update to ‘Basic R’ eBook

July 22, 2010
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(This article was first published on Rmetrics blogs, and kindly contributed to R-bloggers) To leave a comment for the author, please follow the link and comment on their blog: Rmetrics blogs. R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave,...

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BP Oil and Gas Recovery

July 21, 2010
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BP Oil and Gas Recovery

As mentioned in a previous post, the US Department of Energy has been providing data about the Deepwater Horizon as it becomes available.  Recently, the amount of oil and gas recovered was made available.  The spreadsheet includes a grap...

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Bugs [genuine]

July 21, 2010
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Bugs [genuine]

Nothing related with programming, I am afraid! Just a few bugs visiting my passion vine… I find the green bugs quite interesting with their back “engravings”, even though they are most likely pests … Filed under: pictures, ...

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My Talk on Animations at useR! 2010 (NIST, Gaithersburg)

July 21, 2010
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My Talk on Animations at useR! 2010 (NIST, Gaithersburg)

As every useR knows, the useR! 2010 conference is being held at NIST in Gaithersburg these days. I have just finished my talk on the R package animation this afternoon. Here are my slides and R code for those who are interested: Have fun, even if you are a PhD! Related Postsalphahull: an R Package

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Inside-R.org, a new community site for R

July 21, 2010
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As recently as a couple of years ago, finding information about R in the Web was hard. Other than the canonical content and mailing list archives at the official R project site, www.r-project.org, there wasn't too much else dedicated to R on the web -- and what was there was hard to find on Google without the help of...

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R Cheat Sheets and more

July 21, 2010
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R Cheat Sheets and more

Here you can find a collection of cheat sheets useful to R developers. Visit the devcheatsheet homepage to inspect cheat sheets and quick reference card for other programming languages and applications.

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