colorplaner: colorplaner: ggplot2 Extension to Visualize Two Variables Per...

In wmurphyrd/colorplaner: A 'ggplot2' Extension to Visualize Two Variables per Color Aesthetic Through Color Space Projections

Description

Add additional dimensionality to visualizations by using the color and/or fill aesthetics to convey the values of two continuous variables each. By projecting variable values onto YUV color space, a scale is created that allows viewers to intuitively determine the values of both variables from the single displayed color. Includes two new scales and a new guide for ggplot2. See scale_color_colorplane for usage.

Warning Message About Ignoring Unknown Aesthetics

Layers now produce a warning message when unrecognized aesthetics are found but have no mechanism for notifying them of aesthetics handled by scales. The warning can be avoided by mapping color2/fill2 at the plot level (i.e. in the initial ggplot() statement). If you want to avoid colorplane mapping on all layers, map color/fill only on the layers you want, as in the example below.

Examples

library(ggplot2)
ggplot(iris, aes(x = Sepal.Length, y = Sepal.Width,
  colour2 = Petal.Width)) +
 geom_point(aes(colour = Petal.Length)) +
 geom_line(aes(linetype = Species)) +
 scale_color_colorplane()

wmurphyrd/colorplaner documentation built on May 4, 2019, 9:45 a.m.