首先是官方的教程
http://www.cookbook-r.com/Graphs/Colors_(ggplot2)/
然後是一個非官方的
http://www.sthda.com/english/wiki/ggplot2-colors-how-to-change-colors-automatically-and-manually
關於線條的顏色
http://4byte.cn/question/73842/how-to-select-colors-from-a-predefined-color-set-in-ggplot2.html
處理地理空間數據 ，顏色設置
http://mazamascience.com/WorkingWithData/?p=1494
ggplot2 教程
https://github.com/echen/ggplot2-tutorial
一個富集或網絡分析的工具
http://www.bioconductor.org/packages/release/bioc/html/clusterProfiler.html
繪製進化樹的工具
https://cran.r-project.org/web/packages/circlize/vignettes/circular_phylogenetic_tree.pdf
https://cran.r-project.org/web/packages/circlize/vignettes/circlize.pdf