gghline {ggplot}R Documentation

Grob function: hline

Description

Add horizontal line(s) to a plot

Usage

gghline(plot = .PLOT, aesthetics=list(), ..., data=NULL)

Arguments

plot the plot object to modify
aesthetics named list of aesthetic mappings, see details for more information
... other options, see details for more information
data data source, if not specified the plot default will be used

Details

Aesthetic mappings that this grob function understands:

Other options:

Author(s)

Hadley Wickham <h.wickham@gmail.com>

Examples

p <- ggplot(mtcars, aesthetics=list(x = wt, y=mpg))
gghline(ggpoint(p), position=mean(mtcars$mpg), size=2)

[Package ggplot version 0.4.2 Index]