R: Integrative Genomics Viewer (IGV) Color Scales

scale_color_igv {ggsci} | R Documentation

## Integrative Genomics Viewer (IGV) Color Scales

### Description

See `pal_igv` for details.

### Usage

    scale_color_igv(palette = c("default", "alternating"), alpha = 1, ...)

    scale_colour_igv(palette = c("default", "alternating"), alpha = 1, ...)

    scale_fill_igv(palette = c("default", "alternating"), alpha = 1, ...)

### Arguments

`palette` | Palette type. There are two available options: `"default"` (51-color palette); `"alternating"` (2-color palette).
`alpha` | Transparency level, a real number in (0, 1]. See `alpha` in `rgb` for details.
`...` | additional parameters for `discrete_scale`

### Author(s)

Nan Xiao <me@nanx.me> | <https://nanx.me>

### Examples

    library("ggplot2")
    data("diamonds")

    p1 = ggplot(subset(diamonds, carat >= 2.2),
                aes(x = table, y = price, colour = cut)) +
      geom_point(alpha = 0.7) +
      geom_smooth(method = "loess", alpha = 0.1, size = 1, span = 1) +
      theme_bw()

    p2 = ggplot(subset(diamonds, carat > 2.2 & depth > 55 & depth < 70),
                aes(x = depth, fill = cut)) +
      geom_histogram(colour = "black", binwidth = 1, position = "dodge") +
      theme_bw()

    p1 + scale_color_igv()
    p2 + scale_fill_igv()

    p1 + scale_colour_manual(
      values = rep(pal_igv("alternating")(2), times = 3))
    p2 + scale_fill_manual(
      values = rep(pal_igv("alternating")(2), times = 3))

[Package ggsci version 2.9 Index]