Blog Archives

GTA R Users Group – Using R for Data Mining Competitions

November 27, 2011
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GTA R Users Group – Using R for Data Mining Competitions

Here are the presentation slides I used for my talk on “Using R for Data Mining Competitions” at Ryerson University as part of the Greater Toronto Area (GTA) R User’s Meetup Group. Presentation (Prezi) Presentation (PDF) Meetup Event page Special thanks to Anthony Goldbloom from Kaggle and various competition winners for sharing their code and

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Installing Rmpi with OpenMPI on Mac OS X Lion

August 8, 2011
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For whatever reason, Apple decided not to include OpenMPI in Mac OS X Lion (it was supported in Leopard and Snow Leopard). I found this out the hard way after doing a clean install of Lion. Here are steps to install OpenMPI and get it working with the Rmpi package in R. One benefit of

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R with Vim on Mac OS X

December 12, 2010
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R with Vim on Mac OS X

The built-in script editor for the Mac OS X R GUI actually isn’t bad. In fact it is much better than its Window’s counterpart. In particular, it has: Syntax highlighting Auto-completion Bracket matching Auto-indent Block code execution (with blocked command history) However, when coding in R and pretty much any other language, Vim has always

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R on the iPhone

September 12, 2010
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R on the iPhone

iPhone users who have jailbroken their phone have been able to compile R for a while now since they have access to the command line via MobileTerminal.  However, I just recently found out that a package is now up on Cydia to ease installation. So I fired up my iPhone 4 and installed R on

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How to install R packages from source on Mac OS X

July 31, 2010
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In my last post about installing the rgdal R package on Mac OS X, I had apparently glossed over the last step of compiling the R package from source.  I hadn’t realized that Mac OS X actually doesn’t come default with the necessary software to do this.  Most times, prepackaged binaries work fine but occasionally,

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Installing rgdal on Mac OS X

July 23, 2010
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The rgdal package contains bindings from R to the GDAL (Geospatial Data Abstraction Library) as well as the PROJ library. It is a dependency for numerous spatial statistics packages. Note that the binaries on the rgdal homepage are outdated — the most up-to-date version of the rgdal package can be found on CRAN. Unsurprisingly, rgdal

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Hello world!

July 23, 2010
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Throughout the course of my research, I come across a lot of obstacles and nuisances that are either undocumented or documented poorly.  Therefore, I decided to throw up this blog as a repository of sorts to store all of these little tidbits of information with the hope that it will save somebody somewhere a few minutes of

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