chaos_fern: Chaos Fern
In BastiHz/numberphile: Inspired by Numberphile Videos

Description Usage Arguments Details References Examples

View source: R/chaos_game.R

Create a fractal that resembles a fern.

chaos_fern(
  params = c("barnsley", "thelypteridaceae", "leptosporangiate"),
  iterations = 10000
)

`params`	Either the name of a builtin parameter set (see details) or a data fram with the columns a, b, c, d, e and p.
`iterations`	The number of iterations.

The builtin parameter sets are "barnsley", "thelypteridaceae" and "leptosporangiate". The names can be abbreviated. The barnsley fern is the one shown in the video. The two others are taken from the examples on wikipedia.

The Numberphile video featuring Ben Sparks and Brady Haran: Chaos Game (skip to 5:38).

ferns <- list(
    chaos_fern(iterations = 30000),
    chaos_fern("thelypteridaceae", iterations = 30000),
    chaos_fern("leptosporangiate", iterations = 30000)
)
par(mfrow = c(1, 3), mar = rep(0, 4))
for (fern in ferns) {
    plot(fern, pch = ".", axes = FALSE, ann = FALSE, asp = 1, col = "forestgreen")
}