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, legend = TRUE, 
    ...)

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

legend

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 0.8.9 Index]