BM.circle {animation}R Documentation

Brownian Motion in a Circle

Description

Several points moving in a circle.

Usage

BM.circle(n = 20, col = rainbow(n), ...)

Arguments

n number of points
col colors of points
... other parameters passed to points

Details

This is a solution to the question raised in R-help: https://stat.ethz.ch/pipermail/r-help/2008-December/183018.html.

Value

Invisible NULL.

Author(s)

Yihui Xie

References

http://animation.yihui.name/prob:brownian_motion_circle

See Also

brownian.motion, rnorm

Examples

oopt = ani.options(interval = 0.1, nmax = 300)
opar = par(mar = rep(0.5, 4))
BM.circle(cex = 2, pch = 19)

## Not run: 

ani.options(ani.height = 450, ani.width = 450, outdir = getwd(), 
    interval = 0.05, nmax = 100, title = "Brownian Motion in a Circle", 
    description = "Brownian Motion in a circle.")
ani.start()
par(mar = rep(0.5, 4))
BM.circle(cex = 2, pch = 19)
ani.stop()

## End(Not run)

par(opar)
ani.options(oopt) 


[Package animation version 1.0-4 Index]