Bar charts with bricks - ggplot2 extension

geom_brick_col() is the brickr version of ggplot2::geom_col(). Bar height is determined by values in the data using the y aesthetic. With the exception of fill, aesthetics available in ggplot2::geom_col() are generally not enabled here.

geom_brick_col(mapping = NULL, data = NULL, position = "dodge",
  two_knob = TRUE, split_bricks = TRUE, min_radius_for_text = 0.02,
  label = "brickr", label_scale = 1, ..., width = NULL,
  na.rm = FALSE, show.legend = NA, inherit.aes = TRUE)

Arguments

mapping	Set of aesthetic mappings created by aes() or aes_(). If specified and inherit.aes = TRUE (the default), it is combined with the default mapping at the top level of the plot. You must supply mapping if there is no plot mapping.
data	The data to be displayed in this layer. There are three options: If NULL, the default, the data is inherited from the plot data as specified in the call to ggplot(). A data.frame, or other object, will override the plot data. All objects will be fortified to produce a data frame. See fortify() for which variables will be created. A function will be called with a single argument, the plot data. The return value must be a data.frame, and will be used as the layer data. A function can be created from a formula (e.g. ~ head(.x, 10)).
position	It it not recommended to use position = "stack".
two_knob	Logical. Each bar is two knobs / studs wide. When rendering many x values, set to FALSE.
split_bricks	Logical. For simpler bars, do not split into individual bricks. Knobs still render.
min_radius_for_text	Knob radius as a percentage of view port. If the calculated radius is lower than this value, embossed label will not appear in knobs.
label	Character string to include as embossed text inside brick knobs. Maximum 6 characters.
label_scale	Scale text size of label as a percentage. Sizing for the embossed text can be off. A best attempt at the text size is calculated from the device size. Zooming a plot in the RStudio window will not update the text size. If the automated size doesn't look correct after rendering the chart, use this scale.
...	Other arguments passed on to layer(). These are often aesthetics, used to set an aesthetic to a fixed value, like colour = "red" or size = 3. They may also be parameters to the paired geom/stat.
width	Bar width. By default, set to 90% of the resolution of the data.
na.rm	If FALSE, the default, missing values are removed with a warning. If TRUE, missing values are silently removed.
show.legend	logical. Should this layer be included in the legends? NA, the default, includes if any aesthetics are mapped. FALSE never includes, and TRUE always includes. It can also be a named logical vector to finely select the aesthetics to display.
inherit.aes	If FALSE, overrides the default aesthetics, rather than combining with them. This is most useful for helper functions that define both data and aesthetics and shouldn't inherit behaviour from the default plot specification, e.g. borders().

See also

Other Graphs: coord_brick, geom_brick_rect, scale_fill_brick, theme_brick

Examples

#geom_brick_col should be used in conjunction with other brickr charting 
#functions, especially coord_brick.
df <- data.frame(trt = c("a", "b", "c"), outcome = c(2.3, 1.9, 3.2))
ggplot(df, aes(trt, outcome)) +
  geom_brick_col() +
  coord_brick()

#For official LEGO colors, use with scale_fill_brick and theme_brick.
ggplot(df, aes(trt, outcome)) +
  geom_brick_col(aes(fill = trt)) +
  scale_fill_brick() +
  coord_brick() +
  theme_brick()