scheme_theme()
serves as the default theme and will always be overridden by
any theme()
settings applied directly to the plot. The default theme
(scheme_theme()
) is applied first, followed by any specific theme()
settings, even if theme()
is added before scheme_theme()
.
scheme_theme(
...,
line,
rect,
text,
title,
aspect.ratio,
axis.title,
axis.title.x,
axis.title.x.top,
axis.title.x.bottom,
axis.title.y,
axis.title.y.left,
axis.title.y.right,
axis.text,
axis.text.x,
axis.text.x.top,
axis.text.x.bottom,
axis.text.y,
axis.text.y.left,
axis.text.y.right,
axis.text.theta,
axis.text.r,
axis.ticks,
axis.ticks.x,
axis.ticks.x.top,
axis.ticks.x.bottom,
axis.ticks.y,
axis.ticks.y.left,
axis.ticks.y.right,
axis.ticks.theta,
axis.ticks.r,
axis.minor.ticks.x.top,
axis.minor.ticks.x.bottom,
axis.minor.ticks.y.left,
axis.minor.ticks.y.right,
axis.minor.ticks.theta,
axis.minor.ticks.r,
axis.ticks.length,
axis.ticks.length.x,
axis.ticks.length.x.top,
axis.ticks.length.x.bottom,
axis.ticks.length.y,
axis.ticks.length.y.left,
axis.ticks.length.y.right,
axis.ticks.length.theta,
axis.ticks.length.r,
axis.minor.ticks.length,
axis.minor.ticks.length.x,
axis.minor.ticks.length.x.top,
axis.minor.ticks.length.x.bottom,
axis.minor.ticks.length.y,
axis.minor.ticks.length.y.left,
axis.minor.ticks.length.y.right,
axis.minor.ticks.length.theta,
axis.minor.ticks.length.r,
axis.line,
axis.line.x,
axis.line.x.top,
axis.line.x.bottom,
axis.line.y,
axis.line.y.left,
axis.line.y.right,
axis.line.theta,
axis.line.r,
legend.background,
legend.margin,
legend.spacing,
legend.spacing.x,
legend.spacing.y,
legend.key,
legend.key.size,
legend.key.height,
legend.key.width,
legend.key.spacing,
legend.key.spacing.x,
legend.key.spacing.y,
legend.frame,
legend.ticks,
legend.ticks.length,
legend.axis.line,
legend.text,
legend.text.position,
legend.title,
legend.title.position,
legend.position,
legend.position.inside,
legend.direction,
legend.byrow,
legend.justification,
legend.justification.top,
legend.justification.bottom,
legend.justification.left,
legend.justification.right,
legend.justification.inside,
legend.location,
legend.box,
legend.box.just,
legend.box.margin,
legend.box.background,
legend.box.spacing,
panel.background,
panel.border,
panel.spacing,
panel.spacing.x,
panel.spacing.y,
panel.grid,
panel.grid.major,
panel.grid.minor,
panel.grid.major.x,
panel.grid.major.y,
panel.grid.minor.x,
panel.grid.minor.y,
panel.ontop,
plot.background,
plot.title,
plot.title.position,
plot.subtitle,
plot.caption,
plot.caption.position,
plot.tag,
plot.tag.position,
plot.tag.location,
plot.margin,
strip.background,
strip.background.x,
strip.background.y,
strip.clip,
strip.placement,
strip.text,
strip.text.x,
strip.text.x.bottom,
strip.text.x.top,
strip.text.y,
strip.text.y.left,
strip.text.y.right,
strip.switch.pad.grid,
strip.switch.pad.wrap,
complete = FALSE,
validate = TRUE
)
A theme()
object or additional element
specifications not part of base ggplot2. In general, these should also be
defined in the element tree
argument. Splicing
a list
is also supported.
all line elements (element_line()
)
all rectangular elements (element_rect()
)
all text elements (element_text()
)
all title elements: plot, axes, legends (element_text()
;
inherits from text
)
aspect ratio of the panel
labels of axes (element_text()
). Specify all axes' labels (axis.title
),
labels by plane (using axis.title.x
or axis.title.y
), or individually
for each axis (using axis.title.x.bottom
, axis.title.x.top
,
axis.title.y.left
, axis.title.y.right
). axis.title.*.*
inherits from
axis.title.*
which inherits from axis.title
, which in turn inherits
from text
tick labels along axes (element_text()
). Specify all axis tick labels (axis.text
),
tick labels by plane (using axis.text.x
or axis.text.y
), or individually
for each axis (using axis.text.x.bottom
, axis.text.x.top
,
axis.text.y.left
, axis.text.y.right
). axis.text.*.*
inherits from
axis.text.*
which inherits from axis.text
, which in turn inherits
from text
tick marks along axes (element_line()
). Specify all tick marks (axis.ticks
),
ticks by plane (using axis.ticks.x
or axis.ticks.y
), or individually
for each axis (using axis.ticks.x.bottom
, axis.ticks.x.top
,
axis.ticks.y.left
, axis.ticks.y.right
). axis.ticks.*.*
inherits from
axis.ticks.*
which inherits from axis.ticks
, which in turn inherits
from line
minor tick marks along axes (element_line()
). axis.minor.ticks.*.*
inherit from the corresponding major ticks axis.ticks.*.*
.
length of tick marks (unit
)
length of minor tick marks (unit
), or relative to axis.ticks.length
when provided with rel()
.
lines along axes (element_line()
). Specify lines along all axes (axis.line
),
lines for each plane (using axis.line.x
or axis.line.y
), or individually
for each axis (using axis.line.x.bottom
, axis.line.x.top
,
axis.line.y.left
, axis.line.y.right
). axis.line.*.*
inherits from
axis.line.*
which inherits from axis.line
, which in turn inherits
from line
background of legend (element_rect()
; inherits
from rect
)
the margin around each legend (margin()
)
the spacing between legends (unit
). legend.spacing.x
& legend.spacing.y
inherit from legend.spacing
or can be specified separately
background underneath legend keys (element_rect()
;
inherits from rect
)
size of legend keys (unit
); key background height & width inherit from
legend.key.size
or can be specified separately
spacing
between legend keys given as a unit
. Spacing in the horizontal (x) and
vertical (y) direction inherit from legend.key.spacing
or can be
specified separately.
frame drawn around the bar (element_rect()
).
tick marks shown along bars or axes (element_line()
)
length of tick marks in legend (unit
)
lines along axes in legends (element_line()
)
legend item labels (element_text()
; inherits from
text
)
placement of legend text relative to legend keys or bars ("top", "right", "bottom" or "left"). The legend text placement might be incompatible with the legend's direction for some guides.
title of legend (element_text()
; inherits from
title
)
placement of legend title relative to the main legend ("top", "right", "bottom" or "left").
the default position of legends ("none", "left", "right", "bottom", "top", "inside")
A numeric vector of length two setting the
placement of legends that have the "inside"
position.
layout of items in legends ("horizontal" or "vertical")
whether the legend-matrix is filled by columns
(FALSE
, the default) or by rows (TRUE
).
anchor point for positioning legend inside plot ("center" or two-element numeric vector) or the justification according to the plot area when positioned outside the plot
Same as legend.justification
but specified per legend.position
option.
Relative placement of legends outside the plot as a
string. Can be "panel"
(default) to align legends to the panels or
"plot"
to align legends to the plot as a whole.
arrangement of multiple legends ("horizontal" or "vertical")
justification of each legend within the overall bounding box, when there are multiple legends ("top", "bottom", "left", or "right")
margins around the full legend area, as specified
using margin()
background of legend area (element_rect()
;
inherits from rect
)
The spacing between the plotting area and the
legend box (unit
)
background of plotting area, drawn underneath plot
(element_rect()
; inherits from rect
)
border around plotting area, drawn on top of plot so that
it covers tick marks and grid lines. This should be used with
fill = NA
(element_rect()
; inherits from rect
)
spacing between facet
panels (unit
). panel.spacing.x
& panel.spacing.y
inherit from panel.spacing
or can be specified separately.
grid lines (element_line()
). Specify major grid lines,
or minor grid lines separately (using panel.grid.major
or panel.grid.minor
)
or individually for each axis (using panel.grid.major.x
, panel.grid.minor.x
,
panel.grid.major.y
, panel.grid.minor.y
). Y axis grid lines are horizontal
and x axis grid lines are vertical. panel.grid.*.*
inherits from
panel.grid.*
which inherits from panel.grid
, which in turn inherits
from line
option to place the panel (background, gridlines) over
the data layers (logical
). Usually used with a transparent or blank
panel.background
.
background of the entire plot (element_rect()
;
inherits from rect
)
plot title (text appearance) (element_text()
; inherits
from title
) left-aligned by default
Alignment of the plot title/subtitle
and caption. The setting for plot.title.position
applies to both
the title and the subtitle. A value of "panel" (the default) means that
titles and/or caption are aligned to the plot panels. A value of "plot" means
that titles and/or caption are aligned to the entire plot (minus any space
for margins and plot tag).
plot subtitle (text appearance) (element_text()
;
inherits from title
) left-aligned by default
caption below the plot (text appearance)
(element_text()
; inherits from title
) right-aligned by default
upper-left label to identify a plot (text appearance)
(element_text()
; inherits from title
) left-aligned by default
The position of the tag as a string ("topleft",
"top", "topright", "left", "right", "bottomleft", "bottom", "bottomright")
or a coordinate. If a coordinate, can be a numeric vector of length 2 to
set the x,y-coordinate relative to the whole plot. The coordinate option
is unavailable for plot.tag.location = "margin"
.
The placement of the tag as a string, one of
"panel"
, "plot"
or "margin"
. Respectively, these will place the tag
inside the panel space, anywhere in the plot as a whole, or in the margin
around the panel space.
margin around entire plot (unit
with the sizes of
the top, right, bottom, and left margins)
background of facet labels (element_rect()
;
inherits from rect
). Horizontal facet background (strip.background.x
)
& vertical facet background (strip.background.y
) inherit from
strip.background
or can be specified separately
should strip background edges and strip labels be clipped
to the extend of the strip background? Options are "on"
to clip, "off"
to disable clipping or "inherit"
(default) to take the clipping setting
from the parent viewport.
placement of strip with respect to axes, either "inside" or "outside". Only important when axes and strips are on the same side of the plot.
facet labels (element_text()
; inherits from text
). Horizontal facet labels (strip.text.x
) & vertical
facet labels (strip.text.y
) inherit from strip.text
or can be specified
separately. Facet strips have dedicated position-dependent theme elements
(strip.text.x.top
, strip.text.x.bottom
, strip.text.y.left
, strip.text.y.right
)
that inherit from strip.text.x
and strip.text.y
, respectively.
As a consequence, some theme stylings need to be applied to
the position-dependent elements rather than to the parent elements
space between strips and axes when strips are
switched (unit
)
space between strips and axes when strips are
switched (unit
)
set this to TRUE
if this is a complete theme, such as
the one returned by theme_grey()
. Complete themes behave
differently when added to a ggplot object. Also, when setting
complete = TRUE
all elements will be set to inherit from blank
elements.
TRUE
to run validate_element()
, FALSE
to bypass checks.
Theme elements inherit properties from other theme elements hierarchically.
For example, axis.title.x.bottom
inherits from axis.title.x
which inherits
from axis.title
, which in turn inherits from text
. All text elements inherit
directly or indirectly from text
; all lines inherit from
line
, and all rectangular objects inherit from rect
.
This means that you can modify the appearance of multiple elements by
setting a single high-level component.
Learn more about setting these aesthetics in vignette("ggplot2-specs")
.
+.gg()
and %+replace%,
element_blank()
, element_line()
,
element_rect()
, and element_text()
for
details of the specific theme elements.
The modifying theme components and theme elements sections of the online ggplot2 book.
set.seed(123)
small_mat <- matrix(rnorm(56), nrow = 8)
ggheatmap(small_mat) +
scheme_theme(plot.background = element_rect(fill = "red"))
# `scheme_theme()` serves as the default theme and will always be
# overridden by any `theme()` settings applied directly to the plot
ggheatmap(small_mat) +
theme(plot.background = element_rect(fill = "blue")) +
scheme_theme(plot.background = element_rect(fill = "red"))
Run the code above in your browser using DataLab