(This article was first published on

**The power of R**, and kindly contributed to R-bloggers)Well, I had never heard about it, but this morning I was looking for some information about another package and I found and article about this interesting package at ‘The R-Journal’ (http://journal.r-project.org/), it was on the Vol. 8/2, October 2008, by Yihui Xie and Xiaoyue Cheng, and it says something like...

*“The animation package (Xie, 2008) uses graphical and*

*other animations to communicate the results of statistical*

*simulations, giving meaning to abstract statistical theory.”*

Awesome!, isn’t it?. The basic idea of an animation, consists of multiple image frames, which can be designed to correspond to the successive steps of an algorithm or of a data analysis.

The basic schema for all animation functions in the package is:

*ani.fun <- function(args.for.stat.method,args.for.graphics, ...) {*

*{stat.calculation.for.preparation.here}*

*i = 1*

*while (i <= ani.options("nmax") &other.conditions.for.stat.method) {*

*{stat.calculation.for.animation}*

*{plot.results.in.ith.step}*

*# pause for a while in this step*

*Sys.sleep(ani.options(“interval”))*

*i = i + 1*

*}*

# (i – 1) frames produced in the loop

ani.options(“nmax”) = i – 1

{return.something}

}

I will leave this post here while I find the way to upload the animations in here, hope not to delay too much in that.

Have a nice day 😉

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