ggpath {ggplot}R Documentation

Grob function: path

Description

Add a path (a line between points in the order that they appear in the dataset) to the plot

Usage

ggpath(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:

These can be specified in the plot defaults (see ggplot) or in the aesthetics argument. If you want to modify the position of the points or any axis options, you will need to add a position scale to the plot. These functions start with ps, eg. pscontinuous or pscategorical

Other options:

Author(s)

Hadley Wickham <h.wickham@gmail.com>

Examples

myear <- do.call(rbind, by(movies, movies$year, function(df) data.frame(year=df$year[1], mean.length = mean(df$length), mean.rating=mean(df$rating))))
p <- ggplot(myear, aesthetics=list(x=mean.length, y=mean.rating))
ggpath(p)
ggpath(p, list(size=year))
ggpath(p, list(colour=year))
ggpath(scsize(p, c(0.5,1)), list(size=year))
ggpath(scsize(p, c(0.5,1)), list(size=year))
p <- ggplot(mtcars, aesthetics=list(x=drat, y=wt))
ggpath(p)
ggpath(p, list(id=cyl))

[Package ggplot version 0.4.2 Index]