276 search results for "animation"

Animated Heatmap of WikiLeaks Report Intensity in Afghanistan

August 17, 2010
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Visualisation of Activity in Afghanistan using the Wikileaks data from Mike Dewar on Vimeo. The latest visualization of the WikiLeaks data compiled by our group is an animation of the intensity of report observations in Afghanistan over the six year period in the WikiLeaks data. Team member Mike Dewar did the vast majority of work for

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Auto-completion in Notepad++ for R Script

August 14, 2010
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Auto-completion in Notepad++ for R Script

Auto-completion is fancy in a text editor. Notepad++ does not support auto-completion for the R language, so I spent a couple of hours on creating such an XML file to support R: Put it under ‘plugins/APIs‘ in the installation directory of Notepad++ (you can see several other XML files there supporting different languages such as

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Conditioning Systems on Regime Variables

August 10, 2010
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Conditioning Systems on Regime Variables

Here is a brief and simple example of switching systems based upon regime type (sometimes called gating). I've brought up the idea of conditioning systems based upon regimes many times in past posts. Some texts call this filtering, although I prefer t...

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How to animate Google Earth with R

August 6, 2010
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How to animate Google Earth with R

We've looked before at how you can annotate geographical maps using R, but what if you want to overlay data onto a globe of the Earth, using Google Earth? The RKML package for R (from the OmegaHat project) allows you to do just that, by providing a high-level interface from R to generate KML files, which in turn are...

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R and Google Earth ~ comparing tuna tracks vs. Gulf of Mexico oil spill extent

August 5, 2010
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R and Google Earth ~ comparing tuna tracks vs. Gulf of Mexico oil spill extent

There is a lot of interest in how the Gulf of Mexico oil gusher will affect the ecosystem and its marine species. One such species is the Western Atlantic bluefin tuna that holds the Gulf of Mexico as one of its major spawning grounds. Recent tag data show that the location of the gusher is

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U.S. Unemployment Data: Animated Choropleth Maps

August 4, 2010
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U.S. Unemployment Data: Animated Choropleth Maps

I was curious about creating maps with ggplot2 - and was happy to find that great minds have long since tackled this topic.  Folks who are interested in how to learn about R (and ggplot2) might be interested in the process.  (There should be ...

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Hierarchical Visualizations in R and the Javascript InfoVis Toolkit

July 12, 2010
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Hierarchical Visualizations in R and the Javascript InfoVis Toolkit

I love R.  It is really a great language and platform for statistical work and graphing.  But every technology has its limits - and other tools can be meet different needs.  So in this post, I will start with R and move on to the JavaScr...

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100 Prisoners, 100 lines of code

July 9, 2010
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100 Prisoners, 100 lines of code

In math and economics, there is a long, proud history of placing imaginary prisoners into nasty, complicated scenarios. We have, of course, the classic Prisoner’s Dilemma, as well as 100 prisoners and a light bulb. Add to that list the focus of this post, 100 prisoners and 100 boxes. In this game, the warden places

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Reaching escape velocity

June 22, 2010
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Reaching escape velocity

Sample once from the Uniform(0,1) distribution. Call the resulting value . Multiply this result by some constant . Repeat the process, this time sampling from Uniform(0, ). What happens when the multiplier is 2? How big does the multiplier have to be to force divergence. Try it and see: iters = 200 locations = rep(0,iters)

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Zone of instability

May 26, 2010
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Zone of instability

I woke up from my afternoon nap feeling a bit off-kilter, so I decided to go for another random walk. In particular, I wanted a journey that avoided the center, but didn’t just run for an exit either. After playing around for a while I came up with this: # Take a wacky walk, return

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