R: Show a palette with hierarchical clustering

pal.cluster {pals} | R Documentation

## Show a palette with hierarchical clustering

### Description

The palette colors are converted to LUV coordinates before clustering. (RGB coordinates are available, but not recommended.)

### Usage

    pal.cluster(pal, n = 50, type = "LUV", main = "")

### Arguments

`pal` | A palette function or a vector of colors.
`n` | The number of colors to display for palette functions.
`type` | Either "LUV" (default) or "RGB".
`main` | Title to display at the top of the test image

### Details

What to look for:

Colors that are visually similar tend to be clustered together.

### Value

None

### Author(s)

Kevin Wright

### References

None

### Examples

    pal.cluster(alphabet(), main="alphabet")
    pal.cluster(glasbey, main="glasbey") # two royal blues are very similar
    pal.cluster(kelly, main="kelly") # two black-ish colors are very similar
    # pal.cluster(watlington, main="watlington")
    # pal.cluster(coolwarm(15), main="coolwarm") # curiously, grey clusters with blue

[Package pals version 1.5 Index]