Extract the red, green, or blue color components from a vector of colors.
Usage
clr_extract_red(col)
clr_extract_green(col)
clr_extract_blue(col)
clr_extract_alpha(col)
Value
Numeric vector of values.
Arguments
col
a color object or vector of any of the three kinds of R color
specifications, i.e., either a color name (as listed by colors()), a
hexadecimal string of the form "#rrggbb" or "#rrggbbaa" (see rgb), or a
positive integer i meaning palette()[i].
Details
The values of the output will range between 0 and 255.
Use [clr_extract()] if you are planning to extraction multiple components.
See Also
Other Extraction:
clr_extract(),
clr_extract_chroma(),
clr_extract_hue()