| intensity.colors {Cardinal} | R Documentation |
Create a vector of n continuous or discrete colors.
color.map(map = c("redblack", "greenblack", "blueblack", "parula",
"darkrainbow", "rainbow", "grayscale", "jet", "hot", "cool"), n = 100)
intensity.colors(n = 100, alpha = 1)
jet.colors(n = 100, alpha = 1)
divergent.colors(n = 100, start = "#00AAEE",
middle = "#FFFFFF", end = "#EE2200", alpha = 1)
risk.colors(n = 100, alpha = 1)
gradient.colors(n = 100, start = "#000000", end = "#00AAFF", alpha = 1)
bw.colors(n = 100, alpha = 1)
discrete.colors(n = 2, chroma = 150, luminance = 50, alpha = 1)
alpha.colors(col, n = 100, alpha.power = 2,
alpha = (seq_len(n)/n)^alpha.power)
map |
the name of the colormap |
n |
the number of colors |
alpha |
a vector of alpha values between 0 and 1 |
start |
the start color value |
middle |
the middle color value |
end |
the end color value |
chroma |
the chroma of the color |
luminance |
the luminance of the color |
col |
the color(s) to expand with transparency |
alpha.power |
how the alpha should ramp as it increases |
A palette of colors.
Kylie A. Bemis
col <- gradient.colors(100^2)
if ( interactive() ) {
image(matrix(1:(100^2), nrow=100), col=col)
}