geom_slabinterval | R Documentation |
This meta-geom supports drawing combinations of functions (as slabs, aka ridge plots or joy plots), points, and
intervals. It acts as a meta-geom for many other ggdist geoms that are wrappers around this geom, including
eye plots, half-eye plots, CCDF barplots, and point+multiple interval plots, and supports both horizontal and
vertical orientations, dodging (via the position
argument), and relative justification of slabs with their
corresponding intervals.
geom_slabinterval(
mapping = NULL,
data = NULL,
stat = "identity",
position = "identity",
...,
orientation = NA,
normalize = "all",
fill_type = "segments",
interval_size_domain = c(1, 6),
interval_size_range = c(0.6, 1.4),
fatten_point = 1.8,
arrow = NULL,
show_slab = TRUE,
show_point = TRUE,
show_interval = TRUE,
subguide = "none",
na.rm = FALSE,
show.legend = NA,
inherit.aes = TRUE
)
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, either as a |
position |
Position adjustment, either as a string, or the result of a call to a position adjustment function.
Setting this equal to |
... |
Other arguments passed to |
orientation |
Whether this geom is drawn horizontally or vertically. One of:
For compatibility with the base ggplot naming scheme for |
normalize |
How to normalize heights of functions input to the
For a comprehensive discussion and examples of slab scaling and normalization, see the
|
fill_type |
What type of fill to use when the fill color or alpha varies within a slab. One of:
|
interval_size_domain |
A length-2 numeric vector giving the minimum and maximum of the values of the |
interval_size_range |
A length-2 numeric vector. This geom scales the raw size aesthetic values when drawing interval and point
sizes, as they tend to be too thick when using the default settings of |
fatten_point |
A multiplicative factor used to adjust the size of the point relative to the size of the
thickest interval line. If you wish to specify point sizes directly, you can also use the |
arrow |
|
show_slab |
Should the slab portion of the geom be drawn? |
show_point |
Should the point portion of the geom be drawn? |
show_interval |
Should the interval portion of the geom be drawn? |
subguide |
Sub-guide used to annotate the
|
na.rm |
If |
show.legend |
logical. Should this layer be included in the legends?
|
inherit.aes |
If |
geom_slabinterval()
is a flexible meta-geom that you can use directly or through a variety of "shortcut"
geoms that represent useful combinations of the various parameters of this geom. In many cases you will want to
use the shortcut geoms instead as they create more useful mnemonic primitives, such as eye plots,
half-eye plots, point+interval plots, or CCDF barplots.
The slab portion of the geom is much like a ridge or "joy" plot: it represents the value of a function
scaled to fit between values on the x
or y
axis (depending on the value of orientation
). Values of
the functions are specified using the thickness
aesthetic and are scaled to fit into scale
times the distance between points on the relevant axis. E.g., if orientation
is "horizontal"
,
scale
is 0.9
, and y
is a discrete variable, then the thickness
aesthetic specifies the
value of some function of x
that is drawn for every y
value and scaled to fit into 0.9
times
the distance between points on the y
axis.
For the interval portion of the geom, x
and y
aesthetics specify the location of the
point, and ymin
/ymax
or xmin
/xmax
(depending on the value of orientation
)
specify the endpoints of the interval. A scaling factor for interval line width and point size is applied
through the interval_size_domain
, interval_size_range
, and fatten_point
parameters.
These scaling factors are designed to give multiple uncertainty intervals reasonable
scaling at the default settings for scale_size_continuous()
.
As a combination geom, this geom expects a datatype
aesthetic specifying which part of the geom a given
row in the input data corresponds to: "slab"
or "interval"
. However, specifying this aesthetic
manually is typically only necessary if you use this geom directly; the numerous wrapper geoms will
usually set this aesthetic for you as needed, and their use is recommended unless you have a very custom
use case.
Wrapper geoms include:
geom_pointinterval()
geom_interval()
geom_slab()
In addition, the stat_slabinterval()
family of stats uses geoms from the
geom_slabinterval()
family, and is often easier to use than using these geoms
directly. Typically, the geom_*
versions are meant for use with already-summarized data (such as intervals) and the
stat_*
versions are summarize the data themselves (usually draws from a distribution) to produce the geom.
A ggplot2::Geom representing a slab or combined slab+interval geometry which can
be added to a ggplot()
object.
The slab+interval stat
s and geom
s have a wide variety of aesthetics that control
the appearance of their three sub-geometries: the slab, the point, and
the interval.
Positional aesthetics
x
: x position of the geometry
y
: y position of the geometry
Slab-specific aesthetics
thickness
: The thickness of the slab at each x
value (if orientation = "horizontal"
) or
y
value (if orientation = "vertical"
) of the slab.
side
: Which side to place the slab on. "topright"
, "top"
, and "right"
are synonyms
which cause the slab to be drawn on the top or the right depending on if orientation
is "horizontal"
or "vertical"
. "bottomleft"
, "bottom"
, and "left"
are synonyms which cause the slab
to be drawn on the bottom or the left depending on if orientation
is "horizontal"
or
"vertical"
. "topleft"
causes the slab to be drawn on the top or the left, and "bottomright"
causes the slab to be drawn on the bottom or the right. "both"
draws the slab mirrored on both
sides (as in a violin plot).
scale
: What proportion of the region allocated to this geom to use to draw the slab. If scale = 1
,
slabs that use the maximum range will just touch each other. Default is 0.9
to leave some space
between adjacent slabs. For a comprehensive discussion and examples of slab scaling and normalization,
see the thickness
scale article.
justification
: Justification of the interval relative to the slab, where 0
indicates bottom/left
justification and 1
indicates top/right justification (depending on orientation
). If justification
is NULL
(the default), then it is set automatically based on the value of side
: when side
is
"top"
/"right"
justification
is set to 0
, when side
is "bottom"
/"left"
justification
is set to 1
, and when side
is "both"
justification
is set to 0.5.
datatype
: When using composite geoms directly without a stat
(e.g. geom_slabinterval()
), datatype
is used to
indicate which part of the geom a row in the data targets: rows with datatype = "slab"
target the
slab portion of the geometry and rows with datatype = "interval"
target the interval portion of
the geometry. This is set automatically when using ggdist stat
s.
Interval-specific aesthetics
xmin
: Left end of the interval sub-geometry (if orientation = "horizontal"
).
xmax
: Right end of the interval sub-geometry (if orientation = "horizontal"
).
ymin
: Lower end of the interval sub-geometry (if orientation = "vertical"
).
ymax
: Upper end of the interval sub-geometry (if orientation = "vertical"
).
Point-specific aesthetics
shape
: Shape type used to draw the point sub-geometry.
Color aesthetics
colour
: (or color
) The color of the interval and point sub-geometries.
Use the slab_color
, interval_color
, or point_color
aesthetics (below) to
set sub-geometry colors separately.
fill
: The fill color of the slab and point sub-geometries. Use the slab_fill
or point_fill
aesthetics (below) to set sub-geometry colors separately.
alpha
: The opacity of the slab, interval, and point sub-geometries. Use the slab_alpha
,
interval_alpha
, or point_alpha
aesthetics (below) to set sub-geometry colors separately.
colour_ramp
: (or color_ramp
) A secondary scale that modifies the color
scale to "ramp" to another color. See scale_colour_ramp()
for examples.
fill_ramp
: A secondary scale that modifies the fill
scale to "ramp" to another color. See scale_fill_ramp()
for examples.
Line aesthetics
linewidth
: Width of the line used to draw the interval (except with geom_slab()
: then
it is the width of the slab). With composite geometries including an interval and slab,
use slab_linewidth
to set the line width of the slab (see below). For interval, raw
linewidth
values are transformed according to the interval_size_domain
and interval_size_range
parameters of the geom
(see above).
size
: Determines the size of the point. If linewidth
is not provided, size
will
also determines the width of the line used to draw the interval (this allows line width and
point size to be modified together by setting only size
and not linewidth
). Raw
size
values are transformed according to the interval_size_domain
, interval_size_range
,
and fatten_point
parameters of the geom
(see above). Use the point_size
aesthetic
(below) to set sub-geometry size directly without applying the effects of
interval_size_domain
, interval_size_range
, and fatten_point
.
stroke
: Width of the outline around the point sub-geometry.
linetype
: Type of line (e.g., "solid"
, "dashed"
, etc) used to draw the interval
and the outline of the slab (if it is visible). Use the slab_linetype
or
interval_linetype
aesthetics (below) to set sub-geometry line types separately.
Slab-specific color and line override aesthetics
slab_fill
: Override for fill
: the fill color of the slab.
slab_colour
: (or slab_color
) Override for colour
/color
: the outline color of the slab.
slab_alpha
: Override for alpha
: the opacity of the slab.
slab_linewidth
: Override for linwidth
: the width of the outline of the slab.
slab_linetype
: Override for linetype
: the line type of the outline of the slab.
Interval-specific color and line override aesthetics
interval_colour
: (or interval_color
) Override for colour
/color
: the color of the interval.
interval_alpha
: Override for alpha
: the opacity of the interval.
interval_linetype
: Override for linetype
: the line type of the interval.
Point-specific color and line override aesthetics
point_fill
: Override for fill
: the fill color of the point.
point_colour
: (or point_color
) Override for colour
/color
: the outline color of the point.
point_alpha
: Override for alpha
: the opacity of the point.
point_size
: Override for size
: the size of the point.
Deprecated aesthetics
slab_size
: Use slab_linewidth
.
interval_size
: Use interval_linewidth
.
Other aesthetics (these work as in standard geom
s)
width
height
group
See examples of some of these aesthetics in action in vignette("slabinterval")
.
Learn more about the sub-geom override aesthetics (like interval_color
) in the
scales documentation. Learn more about basic ggplot aesthetics in
vignette("ggplot2-specs")
.
Matthew Kay
See geom_lineribbon()
for a combination geom designed for fit curves plus probability bands.
See geom_dotsinterval()
for a combination geom designed for plotting dotplots with intervals.
See stat_slabinterval()
for families of stats
built on top of this geom for common use cases (like stat_halfeye()
).
See vignette("slabinterval")
for a variety of examples of use.
# geom_slabinterval() is typically not that useful on its own.
# See vignette("slabinterval") for a variety of examples of the use of its
# shortcut geoms and stats, which are more useful than using
# geom_slabinterval() directly.
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