ggarea {ggplot} | R Documentation |
Add an filled area to a plot.
ggarea(plot = .PLOT, aesthetics=list(), ..., data=NULL)
plot |
x positions |
aesthetics |
y positions |
... |
id variable used to separate observations into different areas |
data |
colour |
|
pattern |
|
... |
Aesthetic mappings that this grob function understands:
x
:x position (required)
y
:y position (required)
id
:identifier variable used to break up into multiple paths
colour
:line colour (see sccolour
)
fill
:fill colour (see sccolour
)
linetype
:line style/type (see sclinetype
)
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:
Hadley Wickham <h.wickham@gmail.com>
huron <- data.frame(year = 1875:1972, level = as.vector(LakeHuron)) p <- ggplot(huron, aes=list(y=level, x=year)) ggarea(p) ggarea(p, colour="black") ggline(ggarea(p)) # better qplot(year, level, data=huron, type=c("area", "line")) ggarea(p, fill=alpha("grey80", 0.5)) pscontinuous(ggarea(p), "y", range=c(0,NA))