R: Returns a gradient color map

blue2yellow {colorRamps} | R Documentation

## Returns a gradient color map

### Description

`blue2yellow` makes a blue to yellow gradient color map

### Usage

    blue2yellow(n)
    cyan2yellow(n)
    magenta2green(n)

### Arguments

`n` | number of colors

### Details

These are single gradient maps that smoothly transition from cooler to warmer colors. See `blue2red` for double gradient maps.

### Value

A color map

### Author(s)

Tim Keitt <tkeitt@gmail.com>

### References

Keitt, T. H. (2008) Coherent ecological dynamics induced by large scale disturbance. Nature 454:331-334

### See Also

`rgb`

### Examples

    image(matrix(1:400, 20), col = blue2yellow(400))

[Package colorRamps version 2.3 Index]