R: Transparent Colors

transparent {swfscMisc} | R Documentation

## Transparent Colors

### Description

Return transparent form of a named color.

### Usage

    transparent(col, percent = 50)

### Arguments

`col` | vector of colors as name, hexadecimal, or positive integer (see `col2rgb`).
`percent` | percent of transparency (0 = solid, 100 = transparent).

### Author(s)

Eric Archer eric.archer@noaa.gov

### Examples

    pct <- seq(0, 100, by = 10)
    plot(pct, pct, bg = transparent("red", pct), pch = 21, cex = 4, xlab = "X", ylab = "Y")

[Package swfscMisc version 1.2 Index]