Document flipped computed variables (#4128)

* Update doc of stat_boxplot()

* Update doc of stat_smooth()

* Explain some depend on orientation and fix a typo

* Put "or"s in Italic

Author: yutannihilation

DESCRIPTION

@@ -263,6 +263,6 @@ Collate:
     'zxx.r'
     'zzz.r'
 VignetteBuilder: knitr
-RoxygenNote: 7.1.0.9000
+RoxygenNote: 7.1.1
 Roxygen: list(markdown = TRUE)
 Encoding: UTF-8

R/stat-boxplot.r

@@ -2,15 +2,16 @@
 #' @param coef Length of the whiskers as multiple of IQR. Defaults to 1.5.
 #' @inheritParams stat_identity
 #' @section Computed variables:
+#' `stat_boxplot()` provides the following variables, some of which depend on the orientation:
 #' \describe{
 #'   \item{width}{width of boxplot}
-#'   \item{ymin}{lower whisker = smallest observation greater than or equal to lower hinge - 1.5 * IQR}
-#'   \item{lower}{lower hinge, 25% quantile}
+#'   \item{ymin *or* xmin}{lower whisker = smallest observation greater than or equal to lower hinge - 1.5 * IQR}
+#'   \item{lower *or* xlower}{lower hinge, 25% quantile}
 #'   \item{notchlower}{lower edge of notch = median - 1.58 * IQR / sqrt(n)}
-#'   \item{middle}{median, 50% quantile}
+#'   \item{middle *or* xmiddle}{median, 50% quantile}
 #'   \item{notchupper}{upper edge of notch = median + 1.58 * IQR / sqrt(n)}
-#'   \item{upper}{upper hinge, 75% quantile}
-#'   \item{ymax}{upper whisker = largest observation less than or equal to upper hinge + 1.5 * IQR}
+#'   \item{upper *or* xupper}{upper hinge, 75% quantile}
+#'   \item{ymax *or* xmax}{upper whisker = largest observation less than or equal to upper hinge + 1.5 * IQR}
 #' }
 #' @export
 stat_boxplot <- function(mapping = NULL, data = NULL,

R/stat-smooth.r

@@ -30,10 +30,11 @@
 #' @param method.args List of additional arguments passed on to the modelling
 #'   function defined by `method`.
 #' @section Computed variables:
+#' `stat_smooth()` provides the following variables, some of which depend on the orientation:
 #' \describe{
-#'   \item{y}{predicted value}
-#'   \item{ymin}{lower pointwise confidence interval around the mean}
-#'   \item{ymax}{upper pointwise confidence interval around the mean}
+#'   \item{y *or* x}{predicted value}
+#'   \item{ymin *or* xmin}{lower pointwise confidence interval around the mean}
+#'   \item{ymax *or* xmax}{upper pointwise confidence interval around the mean}
 #'   \item{se}{standard error}
 #' }
 #' @export