Description Usage Arguments Details Aesthetics See Also Examples
For each x value, geom_ribbon
displays a y interval defined
by ymin
and ymax
. geom_area
is a special case of
geom_ribbon
, where the ymin
is fixed to 0.
1 2 3 4 5 6 7 |
mapping |
Set of aesthetic mappings created by |
data |
The data to be displayed in this layer. There are three options: If A A |
stat |
The statistical transformation to use on the data for this layer, as a string. |
position |
Position adjustment, either as a string, or the result of a call to a position adjustment function. |
... |
other arguments passed on to |
na.rm |
If |
show.legend |
logical. Should this layer be included in the legends?
|
inherit.aes |
If |
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. See
position_stack
for the details of stacking algorithm.
geomribbon
geom_bar
for discrete intervals (bars),
geom_linerange
for discrete intervals (lines),
geom_polygon
for general polygons
1 2 3 4 5 6 7 8 9 10 11 | # Generate data
huron <- data.frame(year = 1875:1972, level = as.vector(LakeHuron))
h <- ggplot(huron, aes(year))
h + geom_ribbon(aes(ymin=0, ymax=level))
h + geom_area(aes(y = level))
# Add aesthetic mappings
h +
geom_ribbon(aes(ymin = level - 1, ymax = level + 1), fill = "grey70") +
geom_line(aes(y = level))
|
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