geom_area {ggplot2} | R Documentation |
Area plots
geom_area(mapping=NULL, data=NULL, stat="identity", position="stack", ...)
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 |
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.
A layer
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))
x
: x position (required)
y
: y position (required)
colour
: border colour
fill
: internal colour
size
: size
linetype
: line type
Hadley Wickham, http://had.co.nz/
geom_bar
: Discrete intervals (bars)
geom_linerange
: Discrete intervals (lines)
geom_polygon
: General polygons
## Not run: # Examples to come ## End(Not run)