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R color to RGB (red/green/blue) conversion.
ColToRgb(col, alpha = FALSE)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.
logical value indicating whether alpha channel (opacity) values should be returned.
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.
This is merely a wrapper to col2rgb, defined in order to follow this package's naming conventions.
# NOT RUN {
ColToRgb("peachpuff")
ColToRgb(c(blu = "royalblue", reddish = "tomato")) # names kept
ColToRgb(1:8)
# }
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