geom_area {ggplot2}R Documentation

geom_area

Description

Area plots

Usage

geom_area(mapping=NULL, data=NULL, stat="identity", position="stack", ...)

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
... ignored

Details

An area plot is the continuous analog of a stacked bar chart (see geom_bar), and can be used to show how composition of the whole varies over the range of x. Choosing the order in which different components is stacked is very important, as it becomes increasing hard to see the individual pattern as you move up the stack.

An area plot is a special case of geom_ribbon, where the minimum of the range is fixed to 0, and the position adjustment defaults to position_stacked.

This page describes geom_area, 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_area. Aesthetics are mapped to variables in the data with the aes function: geom\_area(\code{aes}(x = var))

Author(s)

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

See Also

Examples

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[Package ggplot2 version 0.8.2 Index]