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Added support for univariate box plots with no x aesthetic. #2292

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Merged
merged 2 commits into from
Apr 27, 2018
Merged

Added support for univariate box plots with no x aesthetic. #2292

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42c86d5
Added support for univariate box plots with no `x` aesthetic (#2110).
foo-bar-baz-qux Oct 13, 2017
e8ea7e8
Merge branch 'master' into add-univariate-boxplot
hadley Apr 27, 2018
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3 changes: 3 additions & 0 deletions NEWS.md
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Original file line number Diff line number Diff line change
Expand Up @@ -205,6 +205,9 @@ up correct aspect ratio, and draws a graticule.
* In all layers that use it, `linemitre` now defaults to 10 (instead of 1)
to better match base R.

* `geom_boxplot()` now supplies default value if no `x` aesthetic present
(@foo-bar-baz-qux, #2110).

* `geom_density()` drops groups with fewer than two data points and throws a
warning. For groups with two data points, the density values are now
calculated with `stats::density` (@karawoo, #2127).
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8 changes: 6 additions & 2 deletions R/stat-boxplot.r
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Expand Up @@ -42,11 +42,15 @@ stat_boxplot <- function(mapping = NULL, data = NULL,
#' @usage NULL
#' @export
StatBoxplot <- ggproto("StatBoxplot", Stat,
required_aes = c("x", "y"),
required_aes = c("y"),
non_missing_aes = "weight",
setup_data = function(data, params) {
data$x <- data$x %||% 0
data
},

setup_params = function(data, params) {
params$width <- params$width %||% (resolution(data$x) * 0.75)
params$width <- params$width %||% (resolution(data$x %||% 0) * 0.75)

if (is.double(data$x) && !has_groups(data) && any(data$x != data$x[1L])) {
warning(
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