Monthly Archives: August 2009

Have you ever heard about the ‘animation package’?

August 18, 2009
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Well, I had never heard about it, but this morning I was looking for some information about another package and I found and article about this interesting package at 'The R-Journal' (http://journal.r-project.org/), it was on the Vol. 8/2, October 2008, by Yihui Xie and Xiaoyue Cheng, and it says something like..."The animation package (Xie, 2008) uses graphical andother...

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Have you ever heard about the ‘animation package’?

August 18, 2009
By

Well, I had never heard about it, but this morning I was looking for some information about another package and I found and article about this interesting package at 'The R-Journal' (http://journal.r-project.org/), it was on the Vol. 8/2, October 2008, by Yihui Xie and Xiaoyue Cheng, and it says something like... "The animation package (Xie, 2008) uses graphical and other...

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ggplot2 Version of Figures in “Lattice: Multivariate Data Visualization with R” (Part 12)

August 18, 2009
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ggplot2 Version of Figures in “Lattice: Multivariate Data Visualization with R” (Part 12)

This is the 12th post in a series attempting to recreate the figures in Lattice: Multivariate Data Visualization with R (R code available here) with ggplot2. Previous parts in this series: Part 1, Part 2, Part 3, Part 4, Part 5, Part 6, Part 7, Part 8, Part 9, Part 10, Part 11. Chapter 13 – Advanced

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R Coding Style Guide

August 18, 2009
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I was sent this R style guide, and think it looks like it might be a good idea. R can be pretty difficult to read, especially someone else's.

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R Coding Style Guide

August 18, 2009
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I was sent this R style guide, and think it looks like it might be a good idea. R can be pretty difficult to read, especially someone else's.

Read more »

The density function

August 18, 2009
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The density function

Today I found such an interesting function called "density", this function computes kernel density estimates, that's why I found it pretty interesting, all you need is:the the data from which the estimate is to be computed the smoothing kernel to be us...

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The density function

August 18, 2009
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The density function

Today I found such an interesting function called "density", this function computes kernel density estimates, that's why I found it pretty interesting, all you need is:the the data from which the estimate is to be computed the smoothing kernel to be us...

Read more »

Social Network Analysis Resources for R

August 17, 2009
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Social Network Analysis Resources for R

Social Network Analysis is an increasingly popular tool for modelling dependence structures between social actors. In my department researchers are developing new models for representing such dependence structures (MELNET). In 2007 I gave a talk on my ...

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Headless R / X11 and Cygwin/X

August 17, 2009
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Running R on a Linux server in headless mode (i.e. producing graphics without XWindows running) can be tricky. Some people recommend using a virtual X framebuffer. However, I’ve found that the best approach (at least im my opinion) is to use the ...

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Potential Loss of Arable Land in the Central San Joaquin Valley, CA

August 17, 2009
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Potential Loss of Arable Land in the Central San Joaquin Valley, CA

Rapid urban and sub-urban expansion in the San Joaquin Valley have resulted in the loss of millions of acres of prime farmland in the last 100 years. Approximately 11% of class 1 (irrigated) land and 7% of class 2 land have already been paved over in the Fresno-Madera region (first image below). Recent projections in the expansion of urban...

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