Monthly Archives: August 2010

R helps reproducible research

August 5, 2010
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While reading a paper on mutualistic networks in press at Ecology, by Jimena Dorado et al., I found the following sentence in the Materials & methods section: Correlation analyses were done using the cor.test function in the basepackage of R (…)Read the rest of this entry »

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Big data for R

August 5, 2010
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Big data for R

Revolutions Analytics recently announced their "big data" solution for R. This is great news and a lovely piece of work by the team at Revolutions. However, if you want to replicate their analysis in standard R, then you can absolutely do so and we show you how.

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Big data for R

August 5, 2010
By
Big data for R

Revolutions Analytics recently announced their "big data" solution for R. This is great news and a lovely piece of work by the team at Revolutions. However, if you want to replicate their analysis in standard R, then you can absolutely do so and we show you how.

Read more »

Plotting texts as graphs with R and igraph

August 4, 2010
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Plotting texts as graphs with R and igraph

I’ve plotted several word association graphs for this New York Times article (1st paragraph) using R and the igraph library. #1, random method #2, circle method #3, sphere method #4, spring method #5, fruchterman-reingold method # 6, kamada-kawai method #7, graphopt method The red vertices mark cliques. Here’s the (rough) R code for plotting such

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Hacking the CISEN homicide data

August 4, 2010
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Hacking the CISEN homicide data

The director of the CISEN, the Mexican agency in charge of generating intelligence to safeguard Mexico's security, said in a presentation yesterday that the number of homicides linked to the drug war was a little over 28,000 since the start of the Calderon administration. Guillermo Valdés didn't provide the raw data so I used Engauge to digitize...

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Hacking the CISEN homicide data

August 4, 2010
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Hacking the CISEN homicide data

The director of the CISEN, the Mexican agency in charge of generating intelligence to safeguard Mexico's security, said in a presentation yesterday that the number of homicides linked to the drug war was a little over 28,000 since the start of the Calderon administration. Guillermo Valdés didn't provide the raw data so I used Engauge to digitize...

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Recent arXiv postings

August 4, 2010
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Recent arXiv postings

With too little time, too many things to do on my plate, here are some recent arXiv postings I won’t have time to comment: Adaptive Monte Carlo on multivariate binary sampling spaces. (arXiv:1008.0055v1) Mixture Decomposition of Distributions using a Decomposition of the Sample Space. (arXiv:1008.0204v1) Bayesian Model Selection for Beta Autoregressive Processes. (arXiv:1008.0121v1) Reference priors

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Integrating R with Geany

August 4, 2010
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According to landroni, R can also be easily integrated with Geany:Download 0.19 (non-optional), then you need to set send_selection_unsafe=true in geany.conf and assign "Send selection to terminal" to a ctrl+r keybinding or similar. As long as you...

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Integrating R with Geany

August 4, 2010
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According to landroni, R can also be easily integrated with Geany:Download 0.19 (non-optional), then you need to set send_selection_unsafe=true in geany.conf and assign "Send selection to terminal" to a ctrl+r keybinding or similar. As long as you...

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ggplot2 gui: Major feature set complete

August 4, 2010
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ggplot2 gui: Major feature set complete

(Written by Ian Fellows) There has been quite a bit of progress on the ggplot2 graphical user interface since the last post. All of the major features have been implemented, and are outlined in the vlog links below. What remains is to fix bugs, improve interface elements, and listen to feedback from users (that’s you).

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