geom_quadrant_lines {ggpp} | R Documentation |
Reference lines: horizontal plus vertical, and quadrants
Description
geom_vhlines()
adds in a single layer both vertical and horizontal
guide lines. Can be thought of as a convenience function that helps with
producing consistent vertical and horizontal guide lines. It behaves like
geom_vline()
and geom_hline()
.
geom_quadrant_lines()
displays the boundaries of four quadrants
with an arbitrary origin. The quadrants are specified in the same way as
in stat_quadrant_counts()
and is intended to be used to add guide
lines consistent with the counts by quadrant computed by this stat.
Usage
geom_quadrant_lines(
mapping = NULL,
data = NULL,
stat = "identity",
position = "identity",
pool.along = c("none", "x", "y", "xy"),
xintercept = 0,
yintercept = 0,
na.rm = FALSE,
show.legend = FALSE,
inherit.aes = FALSE,
...
)
geom_vhlines(
mapping = NULL,
data = NULL,
stat = "identity",
position = "identity",
xintercept = NULL,
yintercept = NULL,
na.rm = FALSE,
show.legend = FALSE,
inherit.aes = FALSE,
...
)
Arguments
mapping |
The aesthetic mapping, usually constructed with
|
data |
A layer specific data set - only needed if you want to override the plot defaults. |
stat |
The statistic object to use display the data |
position |
The position adjustment to use for overlapping points on this layer |
pool.along |
character, one of |
xintercept , yintercept |
numeric vectors the coordinates of the origin of the quadrants. |
na.rm |
a logical indicating whether NA values should be stripped before the computation proceeds. |
show.legend |
logical. Should this layer be included in the legends?
|
inherit.aes |
If |
... |
other arguments passed on to |
Details
While geom_vhlines()
does not provide defaults for the
intercepts and accepts vectors of length > 1, geom_quadrant_lines()
sets by default the intercepts to zero producing the natural quadrants and
only accepts vectors of length one per panel. That is geom_vhlines()
can be used to plot a grid while geom_quadrant_lines()
plots at
most one vertical and one horizontal line. In the case of
geom_quadrant_lines()
the pooling along axes can be specified in the
same way as in stat_quadrant_counts()
.
Value
A plot layer instance.
See Also
geom_abline
, the topic where
geom_vline()
and geom_hline()
are described.
Other Functions for quadrant and volcano plots:
stat_panel_counts()
,
stat_quadrant_counts()
Examples
# generate artificial data
set.seed(4321)
x <- 1:100
y <- rnorm(length(x), mean = 10)
my.data <- data.frame(x, y)
ggplot(my.data, aes(x, y)) +
geom_quadrant_lines() +
geom_point()
ggplot(my.data, aes(x, y)) +
geom_quadrant_lines(linetype = "dotted") +
geom_point()
ggplot(my.data, aes(x, y)) +
geom_quadrant_lines(xintercept = 50,
yintercept = 10,
colour = "blue") +
geom_point()
ggplot(my.data, aes(x, y)) +
geom_quadrant_lines(xintercept = 50,
pool.along = "y",
colour = "blue") +
geom_point()
ggplot(my.data, aes(x, y)) +
geom_vhlines(xintercept = c(25, 50, 75),
yintercept = 10 ,
linetype = "dotted",
colour = "red") +
geom_point() +
theme_bw()
ggplot(my.data, aes(x, y)) +
geom_vhlines(xintercept = c(25, 50, 75),
yintercept = c(10, 8),
linetype = "dotted",
colour = "red") +
geom_point() +
theme_bw()