palette {grDevices} | R Documentation |
View or manipulate the color palette which is used when a col=
has a numeric index.
palette(value)
value |
an optional character vector. |
If value
has length 1, it is taken to be the name of
a built in color palette. If value
has length greater
than 1 it is assumed to contain a description of the colors
which are to make up the new palette (either by name or
by RGB levels).
If value
is omitted or has length 0, no change is made
the current palette.
Currently, the only built-in palette is "default"
.
The palette which was in effect. This is invisible
unless the argument is omitted.
colors
for the vector of built-in “named” colors;
hsv
, gray
, rainbow
,
terrain.colors
,... to construct colors;
col2rgb
for translating colors to RGB 3-vectors.
palette() # obtain the current palette palette(rainbow(6)) # six color rainbow (palette(gray(seq(0,.9,len=25)))) # gray scales; print old palette matplot(outer(1:100,1:30), type='l', lty=1,lwd=2, col=1:30, main = "Gray Scales Palette", sub = "palette(gray(seq(0,.9,len=25)))") palette("default") # reset back to the default