This package contains a variety functions for animations in statistics which could probably aid in teaching statistics and data analysis; it also has several utilities to export R animations to other formats.
It's natural and easy to create an animation
in R using the windows graphics device, e.g. in x11() or
windows(). A basic scheme is like the Example 1 (see below).
On-screen animations do not depend on any third-party software, but the rendering speed of the windows graphics devices is often slow, so the animation might not be smooth (especially under Linux and Mac OS).
The generation of HTML animation pages does not rely on
any third-party software either, and we only need a web browser to watch
the animation. See saveHTML.
The HTML interface is just like a movie player -- it comes with a series of buttons to control the animation (play, stop, next, previous, ...).
This HTML approach is flexible enough to be used even in Rweb, which means
we do not really have to install R to create animations! There is a demo in
system.file('misc', 'Rweb', 'demo.html', package = 'animation'). We
can use saveHTML to create animations directly in Rweb; this
can be helpful when we do not have R or cannot install R.
If ImageMagick or GraphicsMagick has been installed,
we can use im.convert or gm.convert to create a
GIF animation (combining several R plots together), or use
saveGIF to create a GIF animation from an R code chunk.
If SWF Tools has been installed, we can use
saveSWF to create a Flash animation (again, combining R
plots).
If LaTeX is present in the system, we can use
saveLatex to insert animations into a PDF document and watch
the animation using the Adobe reader.
The animation is created by the LaTeX package animate.
The function saveVideo can use FFmpeg to
convert images to various video formats (e.g. mp4, avi and
wmv, etc).
This package mainly makes use of HTML & JavaScript and R windows graphics
devices (such as x11) to demonstrate animations in statistics;
other kinds of output such as Flash (SWF) or GIF animations or PDF animations
are also available if required software packages have been installed. See
below for details on each type of animation.
Examples at https://yihui.org/animation/example/animation-package/
The associated website for this package: https://yihui.org/animation
Yihui Xie and Xiaoyue Cheng. animation: A package for statistical animations. R News, 8(2):23--27, October 2008. URL: https://CRAN.R-project.org/doc/Rnews/Rnews_2008-2.pdf
(NB: some functions mentioned in the above article have been slightly modified; see the help pages for the up-to-date usage.)
Yihui Xie (2013). animation: An R Package for Creating Animations and Demonstrating Statistical Methods. Journal of Statistical Software, 53(1), 1-27. URL 10.18637/jss.v053.i01.