Color Palettes
Create a vector of ‘n’ “contiguous” colors forming either a Blue-White-Red or a White-Gray-Black color palette.
bwr.colors(n) mono.colors(n)
n |
the number of colors in the palette (>=1). |
The function bwr.colors returns a vector of n color
names that range from blue through white to red.
The function mono.colors returns color names ranging from
white to black. Note: the first element of the returned vector
will be NA.
Returns a character vector, cv, of color names. This can be
used either to create a user-defined color palette for subsequent
graphics with palette(cv), or as a col= specification in
graphics functions and par.
Barry Grant
Grant, B.J. et al. (2006) Bioinformatics 22, 2695–2696.
The bwr.colors function is derived from the gplots
package function colorpanel by Gregory R. Warnes.
# Redundant testing excluded
# Color a distance matrix
pdb <- read.pdb( system.file("examples/1hel.pdb", package="bio3d") )
d <- dm(pdb,"calpha")
plot(d, color.palette=bwr.colors)
plot(d,
resnum.1 = pdb$atom[pdb$calpha,"resno"],
color.palette = mono.colors,
xlab="Residue Number", ylab="Residue Number")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.