gray.colors

Gray Color Palette

Create a vector of n gamma-corrected gray colors.

Keywords
color
Usage
gray.colors(n, start = 0.3, end = 0.9, gamma = 2.2, alpha = NULL) grey.colors(n, start = 0.3, end = 0.9, gamma = 2.2, alpha = NULL)
Arguments
n
the number of gray colors ($\ge 1$) to be in the palette.
start
starting gray level in the palette (should be between 0 and 1 where zero indicates "black" and one indicates "white").
end
ending gray level in the palette.
gamma
the gamma correction.
alpha
the opacity, is specified.
Details

The function gray.colors chooses a series of n gamma-corrected gray levels between start and end: seq(start^gamma, end^gamma, length = n)^(1/gamma). The returned palette contains the corresponding gray colors. This palette is used in barplot.default.

grey.colors is an alias for gray.colors.

Value

A vector of n gray colors.

See Also

gray, rainbow, palette.

Aliases
  • gray.colors
  • grey.colors
Examples
library(grDevices) require(graphics) pie(rep(1, 12), col = gray.colors(12)) barplot(1:12, col = gray.colors(12))
Documentation reproduced from package grDevices, version 3.1.2, License: Part of R 3.1.2

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