scale_grey {ggplot2}R Documentation

scale_grey

Description

Sequential grey colour scale

Usage

scale_colour_grey(name=NULL, start=0.2, end=0.8, limits=NULL, breaks=NULL, labels=NULL, formatter=identity, ...)
scale_fill_grey(name=NULL, start=0.2, end=0.8, limits=NULL, breaks=NULL, labels=NULL, formatter=identity, ...)

Arguments

name name of scale to appear in legend or on axis. Maybe be an expression: see ?plotmath
start starting grey colour (between 0 and 1)
end ending grey colour (between 0 and 1)
limits numeric vector of length 2, giving the extent of the scale
breaks numeric vector indicating where breaks should lie
labels character vector giving labels associated with breaks
formatter NULL
... other arguments

Details

Based on ?gray.colors

This page describes scale_grey, see layer and qplot for how to create a complete plot from individual components.

Value

A layer

Author(s)

Hadley Wickham, http://had.co.nz/

See Also

Examples

## Not run: 
p <- qplot(mpg, wt, data=mtcars, colour=factor(cyl)) 
p + scale_colour_grey()
p + scale_colour_grey(end = 0)

# You may want to turn off the pale grey background with this scale
p + scale_colour_grey() + theme_bw
## End(Not run)

[Package ggplot2 version 0.8.2 Index]