R: Change the Color Scheme of a Spectra Object

conColScheme {ChemoSpec} | R Documentation

## Change the Color Scheme of a Spectra Object

### Description

This function permits you to change the color scheme of an existing `Spectra` object.

### Usage

    conColScheme(spectra, old = levels(as.factor(spectra$colors)), new = NULL)

### Arguments

`spectra` | An object of S3 class `Spectra` whose color scheme is to be changed.
`old` | A character vector of the old color names; will be searched for and replaced one-for-one by the character vector in `new`.
`new` | A character vector of the new (replacement) color schemes.

### Details

A grepping process is used. Depending upon the nature of the old color names to be searched for, you might need to add some grep pattern matching strings to the color name.

### Value

An object of S3 class `Spectra` whose color scheme has been changed.

### Author(s)

Bryan A. Hanson, DePauw University.

### References

https://github.com/bryanhanson/ChemoSpec

### See Also

For a discussion of general issues of color, see `colorSymbol`.

### Examples

    data(metMUD1)
    sumSpectra(metMUD1)
    newSpec <- conColScheme(metMUD1, new = c("pink", "violet"))
    sumSpectra(newSpec)

[Package ChemoSpec version 4.4.97 Index]