An implementation of the Grammar of Graphics in R
This is a minor release that turned out quite beefy. It is focused on overhauling the guide system: the system responsible for displaying information from scales in the guise of axes and legends. As part of that overhaul, new guides have been implemented and existing guides have been refined. The look and feel of guides has been mostly preserved, but their internals and styling options have changed drastically.
Briefly summarising other highlights, we also welcome coord_radial() as a
successor of coord_polar(). Initial support for newer graphical features,
such as pattern fills has been added. The API has changed how I()/<AsIs>
vectors interact with the scale system, namely: not at all.
The guide system. As a whole. See 'new features' for more information.
While the S3 guide generics are still in place, the S3 methods for
guide_train(), guide_merge(), guide_geom(), guide_transform(),
guide_gengrob() have been superseded by the respective ggproto methods.
In practice, this will mean that NextMethod() or sub-classing ggplot2's
guides with the S3 system will no longer work.
By default, guide_legend() now only draws a key glyph for a layer when
the value is in the layer's data. To revert to the old behaviour, you
can still set show.legend = c({aesthetic} = TRUE) (@teunbrand, #3648).
In the scale_{colour/fill}_gradient2() and
scale_{colour/fill}_steps2() functions, the midpoint argument is
transformed by the scale transformation (#3198).
The legend.key theme element is set to inherit from the panel.background
theme element. The default themes no longer set the legend.key element.
This causes a visual change with the default theme_gray() (#5549).
The scale_name argument in continuous_scale(), discrete_scale() and
binned_scale() is soft-deprecated. If you have implemented custom scales,
be advised to double-check that unnamed arguments ends up where they should
(@teunbrand, #1312).
The legend.text.align and legend.title.align arguments in theme() are
deprecated. The hjust setting of the legend.text and legend.title
elements continues to fulfill the role of text alignment (@teunbrand, #5347).
'lines' units in geom_label(), often used in the label.padding argument,
are now are relative to the text size. This causes a visual change, but fixes
a misalignment issue between the textbox and text (@teunbrand, #4753)
coord_flip() has been marked as superseded. The recommended alternative is
to swap the x and y aesthetic and/or using the orientation argument in
a layer (@teunbrand, #5130).
The trans argument in scales and secondary axes has been renamed to
transform. The trans argument itself is deprecated. To access the
transformation from the scale, a new get_transformation() method is
added to Scale-classes (#5558).
Providing a numeric vector to theme(legend.position) has been deprecated.
To set the default legend position inside the plot use
theme(legend.position = "inside", legend.position.inside = c(...)) instead.
Plot scales now ignore AsIs objects constructed with I(x), instead of
invoking the identity scale. This allows these columns to co-exist with other
layers that need a non-identity scale for the same aesthetic. Also, it makes
it easy to specify relative positions (@teunbrand, #5142).
The fill aesthetic in many geoms now accepts grid's patterns and gradients.
For developers of layer extensions, this feature can be enabled by switching
from fill = alpha(fill, alpha) to fill = fill_alpha(fill, alpha) when
providing fills to grid::gpar() (@teunbrand, #3997).
New function check_device() for testing the availability of advanced
graphics features introduced in R 4.1.0 onward (@teunbrand, #5332).
coord_radial() is a successor to coord_polar() with more customisation
options. coord_radial() can:
guide_axis_theta() to
display the angle coordinate.end argument.donut
argument.angle aesthetic of layers, such as geom_text(), to align
with the coordinate system using the rotate_angle argument.The guide system encompassing axes and legends, as the last remaining chunk of
ggplot2, has been rewritten to use the <ggproto> system instead of the S3
system. This change was a necessary step to officially break open the guide
system for extension package developers. The axes and legends now inherit from
a <Guide> class, which makes them extensible in the same manner as geoms,
stats, facets and coords (#3329, @teunbrand)
The most user-facing change is that the styling of guides is rewired through
the theme system. Guides now have a theme argument that can style
individual guides, while theme() has gained additional arguments to style
guides. Theme elements declared in the guide override theme elements set
through the plot. The new theme elements for guides are:
legend.key.spacing{.x/.y}, legend.frame, legend.axis.line,
legend.ticks, legend.ticks.length, legend.text.position and
legend.title.position. Previous style options in the arguments of
guide_*() functions are soft-deprecated.
Unfortunately, we could not fully preserve the function of pre-existing
guide extensions written in the S3 system. A fallback for these old guides
is encapsulated in the <GuideOld> class, which calls the old S3 generics.
The S3 methods have been removed as part of cleaning up, so the old guides
will still work if the S3 methods are reimplemented, but we encourage to
switch to the new system (#2728).
The order argument of guides now strictly needs to be a length-1
integer (#4958).
New guide_axis_stack() to combine other axis guides on top of one another.
New guide_axis_theta() to draw an axis in a circular arc in
coord_radial(). The guide can be controlled by adding
guides(theta = guide_axis_theta(...)) to a plot.
New guide_axis_logticks() can be used to draw logarithmic tick marks as
an axis. It supersedes the annotation_logticks() function
(@teunbrand, #5325).
guide_axis() gains a minor.ticks argument to draw minor ticks (#4387).
guide_axis() gains a cap argument that can be used to trim the
axis line to extreme breaks (#4907).
Primary axis titles are now placed at the primary guide, so that
guides(x = guide_axis(position = "top")) will display the title at the
top by default (#4650).
The default vjust for the axis.title.y.right element is now 1 instead of
0.
Unknown secondary axis guide positions are now inferred as the opposite
of the primary axis guide when the latter has a known position (#4650).
New guide_custom() function for drawing custom graphical objects (grobs)
unrelated to scales in legend positions (#5416).
All legends have acquired a position argument, that allows individual guides
to deviate from the legend.position set in the theme() function. This
means that legends can now be placed at multiple sides of the plot (#5488).
The spacing between legend keys and their labels, in addition to legends
and their titles, is now controlled by the text's margin setting. Not
specifying margins will automatically add appropriate text margins. To
control the spacing within a legend between keys, the new
legend.key.spacing.{x/y} argument can be used in theme(). This leaves the
legend.spacing theme setting dedicated to solely controlling the spacing
between different guides (#5455).
guide_colourbar() and guide_coloursteps() gain an alpha argument to
set the transparency of the bar (#5085).
New display argument in guide_colourbar() supplants the raster argument.
In R 4.1.0 and above, display = "gradient" will draw a gradient.
Legend keys that can draw arrows have their size adjusted for arrows.
When legend titles are larger than the legend, title justification extends to the placement of keys and labels (#1903).
Glyph drawing functions of the draw_key_*() family can now set "width"
and "height" attributes (in centimetres) to the produced keys to control
their displayed size in the legend.
coord_sf() now uses customisable guides provided in the scales or
guides() function (@teunbrand).
guide_coloursteps(even.steps = FALSE) now draws one rectangle per interval
instead of many small ones (#5481).
draw_key_label() now better reflects the appearance of labels (#5561).
position_stack() no longer silently removes missing data, which is now
handled by the geom instead of position (#3532).
The minor_breaks function argument in scales can now also take a function
with two arguments: the scale's limits and the scale's major breaks (#3583).
Failing to fit or predict in stat_smooth() now gives a warning and omits
the failed group, instead of throwing an error (@teunbrand, #5352).
labeller() now handles unspecified entries from lookup tables
(@92amartins, #4599).
fortify.default() now accepts a data-frame-like object granted the object
exhibits healthy dim(), colnames(), and as.data.frame() behaviours
(@hpages, #5390).
geom_violin() gains a bounds argument analogous to geom_density()s
(@eliocamp, #5493).
To apply dodging more consistently in violin plots, stat_ydensity() now
has a drop argument to keep or discard groups with 1 observation.
geom_boxplot() gains a new argument, staplewidth that can draw staples
at the ends of whiskers (@teunbrand, #5126)
geom_boxplot() gains an outliers argument to switch outliers on or off,
in a manner that does affects the scale range. For hiding outliers that does
not affect the scale range, you can continue to use outlier.shape = NA
(@teunbrand, #4892).
Nicer error messages for xlim/ylim arguments in coord-* functions (@92amartins, #4601, #5297).
You can now omit either xend or yend from geom_segment() as only one
of these is now required. If one is missing, it will be filled from the x
and y aesthetics respectively. This makes drawing horizontal or vertical
segments a little bit more convenient (@teunbrand, #5140).
When geom_path() has aesthetics varying within groups, the arrow() is
applied to groups instead of individual segments (@teunbrand, #4935).
geom_text() and geom_label() gained a size.unit parameter that set the
text size to millimetres, points, centimetres, inches or picas
(@teunbrand, #3799).
geom_label() now uses the angle aesthetic (@teunbrand, #2785)
The label.padding argument in geom_label() now supports inputs created
with the margin() function (#5030).
ScaleContinuous$get_breaks() now only calls scales::zero_range() on limits
in transformed space, rather than in data space (#5304).
Scales throw more informative messages (@teunbrand, #4185, #4258)
scale_*_manual() with a named values argument now emits a warning when
none of those names match the values found in the data (@teunbrand, #5298).
The name argument in most scales is now explicitly the first argument
(#5535)
The translate_shape_string() internal function is now exported for use in
extensions of point layers (@teunbrand, #5191).
To improve width calculation in bar plots with empty factor levels,
resolution() considers mapped_discrete values as having resolution 1
(@teunbrand, #5211)
In theme(), some elements can be specified with rel() to inherit from
unit-class objects in a relative fashion (@teunbrand, #3951).
theme() now supports splicing a list of arguments (#5542).
In the theme element hierarchy, parent elements that are a strict subclass of child elements now confer their subclass upon the children (#5457).
New plot.tag.location in theme() can control placement of the plot tag
in the "margin", "plot" or the new "panel" option (#4297).
coord_munch() can now close polygon shapes (@teunbrand, #3271)
Aesthetics listed in geom_*() and stat_*() layers now point to relevant
documentation (@teunbrand, #5123).
The new argument axes in facet_grid() and facet_wrap() controls the
display of axes at interior panel positions. Additionally, the axis.labels
argument can be used to only draw tick marks or fully labelled axes
(@teunbrand, #4064).
coord_polar() can have free scales in facets (@teunbrand, #2815).
The get_guide_data() function can be used to extract position and label
information from the plot (#5004).
Improve performance of layers without positional scales (@zeehio, #4990)
More informative error for mismatched
direction/theme(legend.direction = ...) arguments (#4364, #4930).
Fixed regression in guide_legend() where the linewidth key size
wasn't adapted to the width of the lines (#5160).
In guide_bins(), the title no longer arbitrarily becomes offset from
the guide when it has long labels.
guide_colourbar() and guide_coloursteps() merge properly when one
of the aesthetics is dropped (#5324).
When using geom_dotplot(binaxis = "x") with a discrete y-variable, dots are
now stacked from the y-position rather than from 0 (@teunbrand, #5462)
stat_count() treats x as unique in the same manner unique() does
(#4609).
The plot's title, subtitle and caption now obey horizontal text margins (#5533).
Contour functions will not fail when options("OutDec") is not . (@eliocamp, #5555).
Lines where linewidth = NA are now dropped in geom_sf() (#5204).
ggsave() no longer sometimes creates new directories, which is now
controlled by the new create.dir argument (#5489).
Legend titles no longer take up space if they've been removed by setting
legend.title = element_blank() (@teunbrand, #3587).
resolution() has a small tolerance, preventing spuriously small resolutions
due to rounding errors (@teunbrand, #2516).
stage() now works correctly, even with aesthetics that do not have scales
(#5408)
stat_ydensity() with incomplete groups calculates the default width
parameter more stably (@teunbrand, #5396)
The size argument in annotation_logticks() has been deprecated in favour
of the linewidth argument (#5292).
Binned scales now treat NAs in limits the same way continuous scales do
(#5355).
Binned scales work better with trans = "reverse" (#5355).
Integers are once again valid input to theme arguments that expect numeric input (@teunbrand, #5369)
Legends in scale_*_manual() can show NA values again when the values is
a named vector (@teunbrand, #5214, #5286).
Fixed bug in coord_sf() where graticule lines didn't obey
panel.grid.major's linewidth setting (@teunbrand, #5179)
Fixed bug in annotation_logticks() when no suitable tick positions could
be found (@teunbrand, #5248).
The default width of geom_bar() is now based on panel-wise resolution of
the data, rather than global resolution (@teunbrand, #4336).
stat_align() is now applied per panel instead of globally, preventing issues
when facets have different ranges (@teunbrand, #5227).
A stacking bug in stat_align() was fixed (@teunbrand, #5176).
stat_contour() and stat_contour_filled() now warn about and remove
duplicated coordinates (@teunbrand, #5215).
guide_coloursteps() and guide_bins() sort breaks (#5152).
The ScaleContinuous$get_breaks() method no longer censors
the computed breaks.
The ggplot object now contains $layout which points to the Layout ggproto
object and will be used by the ggplot_build.ggplot method. This was exposed
so that package developers may extend the behaviour of the Layout ggproto
object without needing to develop an entirely new ggplot_build method
(@jtlandis, #5077).
Guide building is now part of ggplot_build() instead of
ggplot_gtable() to allow guides to observe unmapped data (#5483).
The titleGrob() function has been refactored to be faster and less
complicated.
The scales_*() functions related to managing the <ScalesList> class have
been implemented as methods in the <ScalesList> class, rather than stray
functions (#1310).
This hotfix release adapts to a change in r-devel's base::is.atomic() and
the upcoming retirement of maptools.
fortify() for sp objects (e.g., SpatialPolygonsDataFrame) is now deprecated
and will be removed soon in support of the upcoming retirement of rproj, rgeos,
and maptools. In advance
of the whole removal, fortify(<SpatialPolygonsDataFrame>, region = ...)
no longer works as of this version (@yutannihilation, #5244).This hotfix release addresses a version comparison change in r-devel. There are no user-facing or breaking changes.
This is a hotfix release anticipating changes in r-devel, but folds in upkeep changes and a few bug fixes as well.
Various type checks and their messages have been standardised (@teunbrand, #4834).
ggplot2 now uses scales::DiscreteRange and scales::ContinuousRange, which
are available to write scale extensions from scratch (@teunbrand, #2710).
The layer_data(), layer_scales() and layer_grob() now have the default
plot = last_plot() (@teunbrand, #5166).
The datetime_scale() scale constructor is now exported for use in extension
packages (@teunbrand, #4701).
update_geom_defaults() and update_stat_defaults() now return properly
classed objects and have updated docs (@dkahle, #5146).
For the purposes of checking required or non-missing aesthetics, character vectors are no longer considered non-finite (@teunbrand, @4284).
annotation_logticks() skips drawing ticks when the scale range is non-finite
instead of throwing an error (@teunbrand, #5229).
Fixed spurious warnings when the weight was used in stat_bin_2d(),
stat_boxplot(), stat_contour(), stat_bin_hex() and stat_quantile()
(@teunbrand, #5216).
To prevent changing the plotting order, stat_sf() is now computed per panel
instead of per group (@teunbrand, #4340).
Fixed bug in coord_sf() where graticule lines didn't obey
panel.grid.major's linewidth setting (@teunbrand, #5179).
geom_text() drops observations where angle = NA instead of throwing an
error (@teunbrand, #2757).
This is a small release focusing on fixing regressions in the 3.4.0 release and minor polishes.
y in stat_ecdf() has been superseded by ecdf to
prevent incorrect scale transformations (@teunbrand, #5113 and #5112).Added scale_linewidth_manual() and scale_linewidth_identity() to support
the linewidth aesthetic (@teunbrand, #5050).
ggsave() warns when multiple filenames are given, and only writes to the
first file (@teunbrand, #5114).
Fixed a regression in geom_hex() where aesthetics were replicated across
bins (@thomasp85, #5037 and #5044).
Using two ordered factors as facetting variables in
facet_grid(..., as.table = FALSE) now throws a warning instead of an
error (@teunbrand, #5109).
Fixed misbehaviour of draw_key_boxplot() and draw_key_crossbar() with
skewed key aspect ratio (@teunbrand, #5082).
Fixed spurious warning when weight aesthetic was used in stat_smooth()
(@teunbrand based on @clauswilke's suggestion, #5053).
The lwd alias is now correctly replaced by linewidth instead of size
(@teunbrand based on @clauswilke's suggestion #5051).
Fixed a regression in Coord$train_panel_guides() where names of guides were
dropped (@maxsutton, #5063).
In binned scales:
Automatic breaks should no longer be out-of-bounds, and automatic limits are adjusted to include breaks (@teunbrand, #5082).
Zero-range limits no longer throw an error and are treated akin to continuous scales with zero-range limits (@teunbrand, #5066).
The trans = "date" and trans = "time" transformations were made compatible
(@teunbrand, #4217).
This is a minor release focusing on tightening up the internals and ironing out
some inconsistencies in the API. The biggest change is the addition of the
linewidth aesthetic that takes of sizing the width of any line from size.
This change, while attempting to be as non-breaking as possible, has the
potential to change the look of some of your plots.
Other notable changes is a complete redo of the error and warning messaging in ggplot2 using the cli package. Messaging is now better contextualised and it should be easier to identify which layer an error is coming from. Last, we have now made the switch to using the vctrs package internally which means that support for vctrs classes as variables should improve, along with some small gains in rendering speed.
A linewidth aesthetic has been introduced and supersedes the size
aesthetic for scaling the width of lines in line based geoms. size will
remain functioning but deprecated for these geoms and it is recommended to
update all code to reflect the new aesthetic. For geoms that have both point
sizing and linewidth sizing (geom_pointrange() and geom_sf) size now
only refers to sizing of points which can leads to a visual change in old
code (@thomasp85, #3672)
The default line width for polygons in geom_sf() have been decreased to 0.2
to reflect that this is usually used for demarking borders where a thinner
line is better suited. This change was made since we already induced a
visual change in geom_sf() with the introduction of the linewidth
aesthetic.
The dot-dot notation (..var..) and stat(), which have been superseded by
after_stat(), are now formally deprecated (@yutannihilation, #3693).
qplot() is now formally deprecated (@yutannihilation, #3956).
stage() now properly refers to the values without scale transformations for
the stage of after_stat. If your code requires the scaled version of the
values for some reason, you have to apply the same transformation by yourself,
e.g. sqrt() for scale_{x,y}_sqrt() (@yutannihilation and @teunbrand, #4155).
Use rlang::hash() instead of digest::digest(). This update may lead to
changes in the automatic sorting of legends. In order to enforce a specific
legend order use the order argument in the guide. (@thomasp85, #4458)
referring to x in backquoted expressions with label_bquote() is no longer
possible.
The ticks.linewidth and frame.linewidth parameters of guide_colourbar()
are now multiplied with .pt like elsewhere in ggplot2. It can cause visual
changes when these arguments are not the defaults and these changes can be
restored to their previous behaviour by adding / .pt (@teunbrand #4314).
scale_*_viridis_b() now uses the full range of the viridis scales
(@gregleleu, #4737)
geom_col() and geom_bar() gain a new just argument. This is set to 0.5
by default; use just = 0/just = 1 to place columns on the left/right
of the axis breaks.
(@wurli, #4899)
geom_density() and stat_density() now support bounds argument
to estimate density with boundary correction (@echasnovski, #4013).
ggplot now checks during statistical transformations whether any data
columns were dropped and warns about this. If stats intend to drop
data columns they can declare them in the new field dropped_aes.
(@clauswilke, #3250)
... supports rlang::list2 dynamic dots in all public functions.
(@mone27, #4764)
theme() now has a strip.clip argument, that can be set to "off" to
prevent the clipping of strip text and background borders (@teunbrand, #4118)
geom_contour() now accepts a function in the breaks argument
(@eliocamp, #4652).
Fix a bug in position_jitter() where infinity values were dropped (@javlon,
#4790).
geom_linerange() now respects the na.rm argument (#4927, @thomasp85)
Improve the support for guide_axis() on coord_trans()
(@yutannihilation, #3959)
Added stat_align() to align data without common x-coordinates prior to
stacking. This is now the default stat for geom_area() (@thomasp85, #4850)
Fix a bug in stat_contour_filled() where break value differences below a
certain number of digits would cause the computations to fail (@thomasp85,
#4874)
Secondary axis ticks are now positioned more precisely, removing small visual artefacts with alignment between grid and ticks (@thomasp85, #3576)
Improve stat_function documentation regarding xlim argument.
(@92amartins, #4474)
Fix various issues with how labels, breaks, limits, and show.limits
interact in the different binning guides (@thomasp85, #4831)
Automatic break calculation now squishes the scale limits to the domain
of the transformation. This allows scale_{x/y}_sqrt() to find breaks at 0
when appropriate (@teunbrand, #980).
Using multiple modified aesthetics correctly will no longer trigger warnings.
If used incorrectly, the warning will now report the duplicated aesthetic
instead of NA (@teunbrand, #4707).
aes() now supports the !!! operator in its first two arguments
(#2675). Thanks to @yutannihilation and @teunbrand for draft
implementations.
Require rlang >= 1.0.0 (@billybarc, #4797)
geom_violin() no longer issues "collapsing to unique 'x' values" warning
(@bersbersbers, #4455)
annotate() now documents unsupported geoms (geom_abline(), geom_hline()
and geom_vline()), and warns when they are requested (@mikmart, #4719)
presidential dataset now includes Trump's presidency (@bkmgit, #4703).
position_stack() now works fully with geom_text() (@thomasp85, #4367)
geom_tile() now correctly recognises missing data in xmin, xmax, ymin,
and ymax (@thomasp85 and @sigmapi, #4495)
geom_hex() will now use the binwidth from stat_bin_hex() if present,
instead of deriving it (@thomasp85, #4580)
geom_hex() now works on non-linear coordinate systems (@thomasp85)
Fixed a bug throwing errors when trying to render an empty plot with secondary axes (@thomasp85, #4509)
Axes are now added correctly in facet_wrap() when as.table = FALSE
(@thomasp85, #4553)
Better compatibility of custom device functions in ggsave()
(@thomasp85, #4539)
Binning scales are now more resilient to calculated limits that ends up being
NaN after transformations (@thomasp85, #4510)
Strip padding in facet_grid() is now only in effect if
strip.placement = "outside" and an axis is present between the strip and
the panel (@thomasp85, #4610)
Aesthetics of length 1 are now recycled to 0 if the length of the data is 0 (@thomasp85, #4588)
Setting size = NA will no longer cause guide_legend() to error
(@thomasp85, #4559)
Setting stroke to NA in geom_point() will no longer impair the sizing of
the points (@thomasp85, #4624)
stat_bin_2d() now correctly recognises the weight aesthetic
(@thomasp85, #4646)
All geoms now have consistent exposure of linejoin and lineend parameters, and the guide keys will now respect these settings (@thomasp85, #4653)
geom_sf() now respects arrow parameter for lines (@jakeruss, #4659)
Updated documentation for print.ggplot to reflect that it returns
the original plot, not the result of ggplot_build(). (@r2evans, #4390)
scale_*_manual() no longer displays extra legend keys, or changes their
order, when a named values argument has more items than the data. To display
all values on the legend instead, use
scale_*_manual(values = vals, limits = names(vals)). (@teunbrand, @banfai,
#4511, #4534)
Updated documentation for geom_contour() to correctly reflect argument
precedence between bins and binwidth. (@eliocamp, #4651)
Dots in geom_dotplot() are now correctly aligned to the baseline when
stackratio != 1 and stackdir != "up" (@mjskay, #4614)
Key glyphs for geom_boxplot(), geom_crossbar(), geom_pointrange(), and
geom_linerange() are now orientation-aware (@mjskay, #4732)
Updated documentation for geom_smooth() to more clearly describe effects of
the fullrange parameter (@thoolihan, #4399).
This is a very small release only applying an internal change to comply with
R 4.2 and its deprecation of default.stringsAsFactors(). There are no user
facing changes and no breaking changes.
This is a very small release focusing on fixing a couple of untenable issues that surfaced with the 3.3.4 release
geom_abline())
as it introduced undesirable issues far worse than the bug it fixed
(@thomasp85, #4514)ggsave() when producing emf/wmf files (@yutannihilation,
#4521)coord_sf() was reporting that it is non-linear
even when data is provided in projected coordinates (@clauswilke, #4527)This is a larger patch release fixing a huge number of bugs and introduces a small selection of feature refinements.
Alt-text can now be added to a plot using the alt label, i.e
+ labs(alt = ...). Currently this alt text is not automatically propagated,
but we plan to integrate into Shiny, RMarkdown, and other tools in the future.
(@thomasp85, #4477)
Add support for the BrailleR package for creating descriptions of the plot when rendered (@thomasp85, #4459)
coord_sf() now has an argument default_crs that specifies the coordinate
reference system (CRS) for non-sf layers and scale/coord limits. This argument
defaults to NULL, which means non-sf layers are assumed to be in projected
coordinates, as in prior ggplot2 versions. Setting default_crs = sf::st_crs(4326)
provides a simple way to interpret x and y positions as longitude and latitude,
regardless of the CRS used by coord_sf(). Authors of extension packages
implementing stat_sf()-like functionality are encouraged to look at the source
code of stat_sf()'s compute_group() function to see how to provide scale-limit
hints to coord_sf() (@clauswilke, #3659).
ggsave() now uses ragg to render raster output if ragg is available. It also
handles custom devices that sets a default unit (e.g. ragg::agg_png)
correctly (@thomasp85, #4388)
ggsave() now returns the saved file location invisibly (#3379, @eliocamp).
The scale arguments limits, breaks, minor_breaks, labels, rescaler
and oob now accept purrr style lambda notation (@teunbrand, #4427). The same
is true for as_labeller() (and therefore also labeller())
(@netique, #4188).
Manual scales now allow named vectors passed to values to contain fewer
elements than existing in the data. Elements not present in values will be set
to NA (@thomasp85, #3451)
Date and datetime position scales support out-of-bounds (oob) arguments to control how limits affect data outside those limits (@teunbrand, #4199).
Fix a bug that after_stat() and after_scale() cannot refer to aesthetics
if it's specified in the plot-global mapping (@yutannihilation, #4260).
Fix bug in annotate_logticks() that would cause an error when used together
with coord_flip() (@thomasp85, #3954)
Fix a bug in geom_abline() that resulted in intercept not being subjected
to the transformation of the y scale (@thomasp85, #3741)
Extent the range of the line created by geom_abline() so that line ending
is not visible for large linewidths (@thomasp85, #4024)
Fix bug in geom_dotplot() where dots would be positioned wrong with
stackgroups = TRUE (@thomasp85, #1745)
Fix calculation of confidence interval for locfit smoothing in geom_smooth()
(@topepo, #3806)
Fix bug in geom_text() where "outward" and "inward" justification for
some angle values was reversed (@aphalo, #4169, #4447)
ggsave() now sets the default background to match the fill value of the
plot.background theme element (@karawoo, #4057)
It is now deprecated to specify guides(<scale> = FALSE) or
scale_*(guide = FALSE) to remove a guide. Please use
guides(<scale> = "none") or scale_*(guide = "none") instead
(@yutannihilation, #4094).
Fix a bug in guide_bins() where keys would disappear if the guide was
reversed (@thomasp85, #4210)
Fix bug in guide_coloursteps() that would repeat the terminal bins if the
breaks coincided with the limits of the scale (@thomasp85, #4019)
Make sure that default labels from default mappings doesn't overwrite default labels from explicit mappings (@thomasp85, #2406)
Fix bug in labeller() where parsing was turned off if .multiline = FALSE
(@thomasp85, #4084)
Make sure label_bquote() has access to the calling environment when
evaluating the labels (@thomasp85, #4141)
Fix a bug in the layer implementation that introduced a new state after the first render which could lead to a different look when rendered the second time (@thomasp85, #4204)
Fix a bug in legend justification where justification was lost of the legend dimensions exceeded the available size (@thomasp85, #3635)
Fix a bug in position_dodge2() where NA values in thee data would cause an
error (@thomasp85, #2905)
Make sure position_jitter() creates the same jittering independent of
whether it is called by name or with constructor (@thomasp85, #2507)
Fix a bug in position_jitter() where different jitters would be applied to
different position aesthetics of the same axis (@thomasp85, #2941)
Fix a bug in qplot() when supplying c(NA, NA) as axis limits
(@thomasp85, #4027)
Remove cross-inheritance of default discrete colour/fill scales and check the
type and aesthetic of function output if type is a function
(@thomasp85, #4149)
Fix bug in scale_[x|y]_date() where custom breaks functions that resulted in
fracional dates would get misaligned (@thomasp85, #3965)
Fix bug in scale_[x|y]_datetime() where a specified timezone would be
ignored by the scale (@thomasp85, #4007)
Fix issue in sec_axis() that would throw warnings in the absence of any
secondary breaks (@thomasp85, #4368)
stat_bin()'s computed variable width is now documented (#3522).
stat_count() now computes width based on the full dataset instead of per
group (@thomasp85, #2047)
Extended stat_ecdf() to calculate the cdf from either x or y instead from y
only (@jgjl, #4005)
Fix a bug in stat_summary_bin() where one more than the requested number of
bins would be created (@thomasp85, #3824)
Only drop groups in stat_ydensity() when there are fewer than two data
points and throw a warning (@andrewwbutler, #4111).
Fixed a bug in strip assembly when theme has strip.text = element_blank()
and plots are faceted with multi-layered strips (@teunbrand, #4384).
Using theme(aspect.ratio = ...) together with free space in facet_grid()
now crrectly throws an error (@thomasp85, #3834)
Fixed a bug in labeller() so that .default is passed to as_labeller()
when labellers are specified by naming faceting variables. (@waltersom, #4031)
Updated style for example code (@rjake, #4092)
ggplot2 now requires R >= 3.3 (#4247).
ggplot2 now uses rlang::check_installed() to check if a suggested package is
installed, which will offer to install the package before continuing (#4375,
@malcolmbarrett)
Improved error with hint when piping a ggplot object into a facet function
(#4379, @mitchelloharawild).
This is a small patch release mainly intended to address changes in R and CRAN. It further changes the licensing model of ggplot2 to an MIT license.
all.equal() defaults in R >4.0.3