# hsv

0th

Percentile

##### HSV Color Specification

Create a vector of colors from vectors specifying hue, saturation and value.

Keywords
color, dplot
##### Usage
hsv(h = 1, s = 1, v = 1, alpha)
##### Arguments
h,s,v

numeric vectors of values in the range [0, 1] for ‘hue’, ‘saturation’ and ‘value’ to be combined to form a vector of colors. Values in shorter arguments are recycled.

alpha

numeric vector of values in the range [0, 1] for alpha transparency channel (0 means transparent and 1 means opaque).

##### Details

Semi-transparent colors (0 < alpha < 1) are supported only on some devices: see rgb.

##### Value

This function creates a vector of colors corresponding to the given values in HSV space. The values returned by hsv can be used with a col= specification in graphics functions or in par.

hcl for a perceptually based version of hsv(), rgb and rgb2hsv for RGB to HSV conversion; rainbow, gray.
library(grDevices) # NOT RUN { require(graphics) hsv(.5,.5,.5) ## Red tones: n <- 20; y <- -sin(3*pi*((1:n)-1/2)/n) op <- par(mar = rep(1.5, 4)) plot(y, axes = FALSE, frame.plot = TRUE, xlab = "", ylab = "", pch = 21, cex = 30, bg = rainbow(n, start = .85, end = .1), main = "Red tones") par(op) # }