293 search results for "animation"

How to animate Google Earth with R

August 6, 2010
By
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...

Read more »

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

August 5, 2010
By
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

Read more »

U.S. Unemployment Data: Animated Choropleth Maps

August 4, 2010
By
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 ...

Read more »

Hierarchical Visualizations in R and the Javascript InfoVis Toolkit

July 12, 2010
By
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...

Read more »

100 Prisoners, 100 lines of code

July 9, 2010
By
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

Read more »

Reaching escape velocity

June 22, 2010
By
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)

Read more »

Zone of instability

May 26, 2010
By
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

Read more »

Game of Life in R

May 5, 2010
By
Game of Life in R

Before I decided to learn R in a serious way, I thought about learning Flash/Actionscript instead. Most of my work involves evolutionary models that take place over time. I need visual representations of change. It’s certainly possible to represent change and tell an evolving story with a single plot (see for example Tufte’s favorite infographic),

Read more »

alphahull: an R Package for Alpha-Convex Hull

April 16, 2010
By
alphahull: an R Package for Alpha-Convex Hull

new paper on the α-convex hull appeared in the Journal of Statistical Software today (http://www.jstatsoft.org/v34/i05/paper). The α-convex hull is an interesting problem which caught my attention long time ago but I didn’t know a solution then. R has a function chull() which can generate (indices of) the convex hull for a series of points. Now

Read more »

R is an Epic Fail?

April 15, 2010
By

I came across this blog post just now: The Next Big Thing, and of course these words caught my attention: However, for me personally and for most users, both individual and organizational, the much greater cost of software is the time it takes to install it, maintain it, learn it and document it. On

Read more »