intensity.colors {Cardinal} | R Documentation

## Color Palettes for Imaging

### Description

Create a vector of `n` continuous colors.

### Usage

    intensity.colors(n, alpha=1)
    risk.colors(n, alpha=1)
    gradient.colors(n, start="white", end="black", alpha=1)
    alpha.colors(n, col="red", alpha.power=2, alpha=(seq_len(n)/n)^alpha.power)

### Arguments

`n` | the number of colors
`alpha` | a vector of alpha values between 0 and 1
`start` | the starting color value
`end` | the ending color value
`col` | the color(s) to expand with transparency
`alpha.power` | how the alpha should ramp as it increases

### Value

A pallete of colors.

### Author(s)

Kylie A. Bemis

### Examples

    col <- intensity.colors(100^2)
    if ( interactive() ) {
    	image(matrix(1:(100^2), nrow=100), col=col)
    }

[Package Cardinal version 1.12.1 Index]