default color palette of ggplot2

palette_ggplot-default.md

• default color palette of ggplot2
• [R] ggplot2の色をプレゼンでも使いたい
• scale_colour_hue(), luminance=65
• n: number of variables
• l: luminance

gg_color_hue <- function(n, l=65) {
  hues <- seq(15, 375, length=n+1)
  hcl(h=hues, l=l, c=100)[1:n]
}

• when variable is 5

col.v <- gg_color_hue(5)

• convert to RGB

col2rgb(col.v)