geom_density2d {ggplot2}R Documentation

geom\_density2d

Description

Contours from a 2d density estimate

Usage

geom_density2d(mapping = NULL, data = NULL, stat = "density2d", 
    position = "identity", lineend = "butt", linejoin = "round", 
    linemitre = 1, na.rm = FALSE, ...)

Arguments

mapping

mapping between variables and aesthetics generated by aes

data

dataset used in this layer, if not specified uses plot dataset

stat

statistic used by this layer

position

position adjustment used by this layer

lineend

Line end style (round, butt, square)

linejoin

Line join style (round, mitre, bevel)

linemitre

Line mitre limit (number greater than 1)

na.rm

NULL

...

other arguments

Details

Perform a 2D kernel density estimatation using kde2d and display the results with contours.

This page describes geom\_density2d, see layer and qplot for how to create a complete plot from individual components.

Value

A layer

Aesthetics

The following aesthetics can be used with geom\_density2d. Aesthetics are mapped to variables in the data with the aes function: geom\_density2d(aes(x = var))

Advice

This can be useful for dealing with overplotting.

Author(s)

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

See Also

Examples

## Not run: 
# See stat_density2d for examples

## End(Not run)

[Package ggplot2 version 0.8.9 Index]