Plot Coloring in R

[https://www.rapidtables.com/web/color/RGB_Color.html]

• Provides RGB Color Codes with a variety of methods to choose the color

• Provides Hex #, RGB #s, Calculations

[http://www.dataanalytics.org.uk/Data%20Analysis/TipsAndTricks/TTR-20150531.htm]

• How to make colors transparent (using your own function)

• Uses functions rgb(), col2rgb()

[http://www.color-hex.com/]

• Hex Color Codes

[https://cran.r-project.org/web/packages/colorspace/vignettes/hcl-colors.pdf]

• HCL-Based Color Palettes in R

[https://stat.ethz.ch/R-manual/R-devel/library/grDevices/html/palettes.html]

• Color Palettes

• References functions rainbow(), heat.colors(), terrain.colors(), topo.colors(), cm.colors()

[http://sape.inf.usi.ch/quick-reference/ggplot2/colour]

• quick reference for colors in ggplot2

• predefined colour names

[http://www.sthda.com/english/wiki/ggplot2-colors-how-to-change-colors-automatically-and-manually]

• changing plot colors automatically and manually in ggplot2

[https://www.nceas.ucsb.edu/~frazier/RSpatialGuides/colorPaletteCheatsheet.pdf]

• R Color Cheatsheet

• Uses a variety of functions for baseplot graphs and ggplot graphs