R: Viridis palette

viridis_pal {scales} | R Documentation

## Viridis palette

### Description

Viridis palette

### Usage

    viridis_pal(alpha = 1, begin = 0, end = 1, direction = 1,
      option = "D")

### Arguments

`alpha` | The alpha transparency, a number in [0,1], see argument alpha in `hsv`.
`begin` | The (corrected) hue in [0,1] at which the viridis colormap begins.
`end` | The (corrected) hue in [0,1] at which the viridis colormap ends.
`direction` | Sets the order of colors in the scale. If 1, the default, colors are ordered from darkest to lightest. If -1, the order of colors is reversed.
`option` | A character string indicating the colormap option to use. Four options are available: "magma" (or "A"), "inferno" (or "B"), "plasma" (or "C"), and "viridis" (or "D", the default option).

### References

https://bids.github.io/colormap/

### Examples

    show_col(viridis_pal()(10))
    show_col(viridis_pal(direction = -1)(6))
    show_col(viridis_pal(begin = 0.2, end = 0.8)(4))
    show_col(viridis_pal(option = "plasma")(6))

[Package scales version 0.5.0 Index]