ColToRgb

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Color to RGB Conversion

R color to RGB (red/green/blue) conversion.

Keywords
color
Usage
ColToRgb(col, alpha = FALSE)
Arguments
col
vector of any of the three kind of R colors, i.e., either a color name (an element of colors()), a hexadecimal string of the form "#rrggbb" or "#rrggbbaa", or an integer i meaning palette()[i]. Non-string values are coerced to integer.

alpha
logical value indicating whether alpha channel (opacity) values should be returned.

Details

This is merely a wrapper to col2rgb, defined in order to follow this package's naming conventions.

Value

A matrix with a column for each color. The three rows of the matrix indicate red, green and blue value and are named "red", "green", and "blue" accordingly. The matrix might have a 4th row if an alpha channel is requested.

See Also

col2rgb, RgbToCol

Aliases
  • ColToRgb
Examples
ColToRgb("peachpuff")
ColToRgb(c(blu = "royalblue", reddish = "tomato")) # names kept

ColToRgb(1:8)
Documentation reproduced from package DescTools, version 0.99.19, License: GPL (>= 2)

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