r - 用R中的十六进制值绘制颜色

Question

如何在R中生成5x5矩阵，每个单元格使用与调色板不同的颜色(例如，绿色)上色，并且每个单元格显示该颜色的十六进制值？谢谢您的帮助!

Answer 1

您可以使用show_col包中的scales函数

library(viridis)
library(scales)

nCol <- 25
myCol <- viridis(n = nCol)
myCol
#>  [1] "#440154FF" "#471164FF" "#481F70FF" "#472D7BFF" "#443A83FF"
#>  [6] "#404688FF" "#3B528BFF" "#365D8DFF" "#31688EFF" "#2C728EFF"
#> [11] "#287C8EFF" "#24868EFF" "#21908CFF" "#1F9A8AFF" "#20A486FF"
#> [16] "#27AD81FF" "#35B779FF" "#47C16EFF" "#5DC863FF" "#75D054FF"
#> [21] "#8FD744FF" "#AADC32FF" "#C7E020FF" "#E3E418FF" "#FDE725FF"
show_col(myCol)

myCol <- viridis(n = nCol, option = "E")
show_col(myCol)

myCol <- viridis(n = nCol, option = "B" )
pie(rep(1, nCol), col = myCol, labels = myCol)

由 reprex package(v0.2.0.9000)创建于2018-08-15。