Package Presentation

Your Name

Lead Author: Yihui Xie

Software engineer at Rstudio PhD Department of Statistics, Iowa State University Founded Chinese website Capital of Statistics & initiated 1st Chinese R conference

R packages: * animation * formatR * knitr

“I know I cannot eat code, so I cook almost every day to stay away from my computer for two hours.”

Animation package

Makes animations!

probability theory
mathematical statistics
multivariate statistics
nonparametric statistics
sampling survey
linear models
time series
computational statistics
data mining
machine learning

Save to Flash, GIF, HTML pages, PDF and videos

Basic steps…

Uses a ’loop’ to make a series of plots
Package ‘combines’ them into an animation

Example Code: Linear Regression

library(animation)
saveGIF({    
ani.options(interval = 0.3, nmax = 50)
  par(
    mar = c(4, 4, 0.5, 0.1),
    mgp = c(2, 0.5, 0),
    tcl = -0.3)
  least.squares()
  },
img.name = "least.squares",
htmlfile = "least.squares.gif",
ani.height = 600, 
ani.width = 1000,
title = "Demonstration of Least Squares")

## Executing: 
## convert -loop 0 -delay 30 least.squares1.png least.squares2.png
##     least.squares3.png least.squares4.png least.squares5.png
##     least.squares6.png least.squares7.png least.squares8.png
##     least.squares9.png least.squares10.png least.squares11.png
##     least.squares12.png least.squares13.png least.squares14.png
##     least.squares15.png least.squares16.png least.squares17.png
##     least.squares18.png least.squares19.png least.squares20.png
##     least.squares21.png least.squares22.png least.squares23.png
##     least.squares24.png least.squares25.png least.squares26.png
##     least.squares27.png least.squares28.png least.squares29.png
##     least.squares30.png least.squares31.png least.squares32.png
##     least.squares33.png least.squares34.png least.squares35.png
##     least.squares36.png least.squares37.png least.squares38.png
##     least.squares39.png least.squares40.png least.squares41.png
##     least.squares42.png least.squares43.png least.squares44.png
##     least.squares45.png least.squares46.png least.squares47.png
##     least.squares48.png least.squares49.png least.squares50.png
##     'animation.gif'

## Output at: animation.gif