# Posts Tagged ‘ Animation ’

## formatR update (0.1-5)

December 3, 2010
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he formatR package has been silent for quite a few months now. Recently I’ve been moving my old packages from R-Forge to GitHub, and I finally killed several things on my TODO list. In the past, I made an awkward decision to let formatR depend on the animation package, which was ridiculous. Ronggui suggested me

## My Talk on Animations at useR! 2010 (NIST, Gaithersburg)

July 21, 2010
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As every useR knows, the useR! 2010 conference is being held at NIST in Gaithersburg these days. I have just finished my talk on the R package animation this afternoon. Here are my slides and R code for those who are interested: Have fun, even if you are a PhD! Related Postsalphahull: an R Package

## Game of Life in R

May 5, 2010
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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),

## alphahull: an R Package for Alpha-Convex Hull

April 16, 2010
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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

## A Demo for the Ratio Estimation in Sampling Survey (Animation)

March 24, 2010
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$\reverse \bar{Y}$

mber Watkins gave me a suggestion on the animation for the ratio estimation, and I think this is a good topic for my animation package. I’ve finished writing the initial version of the function sample.ratio() for this package, which will appear in the version 1.1-2 a couple of days later. As we know, the benefit

## Happy New Year with R

December 31, 2009
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I have to admit that the previous post on Christmas is actually not much fun. Today I received another pResent from Yixuan which is more interesting: Basically the code deals with letter polygons (i.e. glyphs) and plot them with proper projections from 3D to 2D space: ## original code by Yixuan <[email protected]>, with my slight modification h.x =

## Merry Christmas Using R

December 24, 2009
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Life should be fun. I saw a post in R-help list saying Merry Christmas to other useRs, and I followed up by some R code which can produce a naive animation like this: Here is the code to generate the above Flash animation with shining Christmas: library(animation) saveSWF({ n = length(speed <- runif(angle <- runif(x

## Animation video of rgl in action

December 21, 2009
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Duncan Murdoch just posted a youtube video presenting an animation clip of a 3d rgl object. Duncan even went further and wrote an explanation on how he made the video: here are the steps I used: 1.  Design a shape to be displayed, and then play with the animation functions to make it change over time.  Use play3d to do

## Create Animations in PDF Documents Using R

November 11, 2009
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ince animation 1.0-9, we will be able to create a PDF document with an animation embedded in it; the function is saveLatex(), and its usage is similar to saveMovie() and saveSWF(): you pass an R expression for creating animations to this function, and this expression will be evaluated in the function; the image frames get