統計分析：使用 R 的簡介/前言

library(caTools) # 提供 write.gif 函式的外部軟體包 jet.colors <- colorRampPalette(c("#00007F", "blue", "#007FFF", "cyan", "#7FFF7F",

                                "yellow", "#FF7F00", "red", "#7F0000")) 

m <- 1200 # 定義大小 C <- complex( real=rep(seq(-1.8,0.6, length.out=m), each=m ),

             imag=rep(seq(-1.2,1.2, length.out=m), m ) ) 

C <- matrix(C,m,m) # 重整為複數矩陣 Z <- 0 # 初始化 Z 為零 X <- array(0, c(m,m,20)) # 初始化輸出 3D 陣列 for (k in 1:20) { # 迴圈 20 次

 Z <- Z^2+C             # the central difference equation  
 X[,,k] <- exp(-abs(Z)) # capture results

} write.gif(X, "Mandelbrot.gif", col=jet.colors, delay=100)