sccolour {ggplot}R Documentation

Scale: categorical colour

Description

Create a scale for categorical colours.

Usage

sccolour(plot = .PLOT, name="", h=c(0,360), l=65, c=100, alpha=1)

Arguments

plot plot to add scale to
name name of the scale (used in the legend)
h range of hues to use
l luminance value
c chroma value
alpha alpha value

Details

Continuous variables will automatically be converted to categorical using chop_auto. You may want to use chop to convert the values yourself for finer control.

This scale is automatically added when you have colour in your list of aesthetics. For finer control, you will need to set the scale yourself. See the example for some ideas.

Author(s)

Hadley Wickham <h.wickham@gmail.com>

See Also

scale_categorical, map_colour

Examples

p <- ggplot(movies, aes=list(x=mpaa, y=rating))
ggjitter(p, list(colour=rating))
ggjitter(p, list(colour=length))
ggjitter(p, list(colour=chop(length)))
ggjitter(p, list(colour=chop(length,3)))
sccolour(ggjitter(p, list(colour=chop(length,3))), 2)

[Package ggplot version 0.4.2 Index]