Blog Archives

Word Cloud in R

July 27, 2011
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Word Cloud in R

A word cloud (or tag cloud) can be an handy tool when you need to highlight the most commonly cited words in a text using a quick visualization. Of course, you can use one of the several on-line services, such as wordle or tagxedo ,...

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R meets XKCD

July 14, 2011
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R meets XKCD

Being a big fan of XKCD and, of course, of the R programming language, I thought that a package which allows to display my favorite strips  would something (useless) but cool! So, mimicking the approach (and the code) of the fortunes pac...

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Installing Multiple Version of R in parallel on the same machine – Mac OS X

June 24, 2011
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Installing Multiple Version of R in parallel on the same machine – Mac OS X

In a few days I'm going to attend a Bioconductor Course; I was requested to install on my MacBook (Mac OS X 10.5.8) a developer version of R (plus ad hoc Bioconductor packages). In order to keep my old R installation ((2.13) along side the ne...

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R 2.13.0 is released!

April 14, 2011
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R 2.13.0 is released!

The new R 2.13.0 is out! Get the source code from here. Take a look at these posts for some miscellaneous advices to make the upgrade easier. Also this thread on stackoverflow and this post contributed by Tal Galili&nbs...

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Plotting images on a grid using R or Python

February 2, 2011
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Plotting images on a grid using R or Python

A thread depicting how to insert a png image in a plot, thanks to Stackoverflow: plotting-images-on-a-grid. A very basic tip, still useful to someone.

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R Journal 2/2

December 31, 2010
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R Journal 2/2

The last gift of 2010: R Journal 2/2 is out! Get it from here.

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A R wrapper for Google Prediction API

November 8, 2010
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A R wrapper for Google Prediction API

Since I got the chance to access to both Google Storage for Developers and Google Prediction API (more details here and here), I decided to create a simple wrapper (just 4 basic functions until now) to be capable to play with the Google Prediction API ...

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R 2.12.0 is released!

October 15, 2010
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R 2.12.0 is released!

The new R 2.12.0 is out! Get the source code from here. Take a look at these posts for some miscellaneous advices to make the upgrade easier. Also this thread on stackoverflow can be of some value. Feel free to contribute with suggestions about how to ...

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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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R Journal 2/1

June 30, 2010
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R Journal 2/1

R Journal 2/1 is out! Grab it from here.

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