checkColorMap {easy.utils}

Check color map for a factor

Description

Function to make sure that all levels of a factor map to distinct colors.

Usage

checkColorMap(x, colors = NULL, ...)

## Default S3 method:
checkColorMap(x, colors = NULL, ...)

Arguments

x

An R object contains the factor vector to be checked.

colors

A named vector, whose names are factor levels and values are colors. If is NULL, just generate colors with setColor. Otherwise, it first generates colors for each level, then replaces those with names mapping to colors.

...

Arguments passed to other methods.

Value

An updated colors vector, whose names are identical to the levels.

Examples

## Assign colors for a character or factor vector.
xx <- sample(LETTERS, 10)
cols <- setColor(xx)

## Ensure each level in 'xx' get a color
checkColorMap(xx, cols)