custom.colorblind: Colorblind-safe grey lattice theme

In m-jahn/lattice-tools: Panel functions and wrappers that extend the R lattice universe

Colorblind-safe grey lattice theme

Description

Custom theme for lattice plots. Colorblind-safe color scale with 7 colors was adapted from R color brewer, see RColorBrewer::brewer.pal(8, "Dark2")). Color blind safe colors are distinguishable for most common types of color blindness (deuterotopia, deuteroanomaly), yet still look good for non color blind people. Some graphical parameters can be passed to override the defaults. Size parameters are relative.

Usage

custom.colorblind(
  col = c("#E7298A", "#66A61E", "#E6AB02", "#7570B3", "#666666", "#1B9E77", "#D95F02",
    "#A6761D"),
  symbol_type = 19,
  symbol_size = 1,
  line_type = 1,
  line_size = 1,
  text_type = 1,
  text_size = 1
)

Arguments

col	default colors for the theme
symbol_type	symbol(s) for the theme ('pch', defaults to 19)
symbol_size	relative expansion factor (default 1)
line_type	line type(s) for the theme ('lty', defaults to 1)
line_size	relative expansion factor (default 1)
text_type	the font face, a number form 1 to 4 for normal, bold, italic, bold + italic
text_size	relative expansion factor (default 1)

Examples

library(lattice)
data(mtcars)

xyplot(mpg ~ factor(carb) | gear, mtcars,
  groups = carb, auto.key = list(columns = 3),
  par.settings = custom.colorblind(),
  panel = function(x, y, ...) {
    panel.grid(h = -1, v = -1, col = grey(0.95))
    panel.xyplot(x, y, ...)
    panel.lmline(x, y, ...)
  }
)

m-jahn/lattice-tools documentation built on Dec. 3, 2023, 11:14 p.m.