gf_ribbon: Formula interface to geom_ribbon()

gf_ribbonR Documentation

Formula interface to geom_ribbon()


For each x value, geom_ribbon() displays a y interval defined by ymin and ymax. geom_area() is a special case of geom_ribbon(), where the ymin is fixed to 0 and y is used instead of ymax.


  object = NULL,
  gformula = NULL,
  data = NULL,
  alpha = 0.3,
  geom = "ribbon",
  stat = "identity",
  position = "identity",
  show.legend = NA, = NULL,
  inherit = TRUE,
  environment = parent.frame()



When chaining, this holds an object produced in the earlier portions of the chain. Most users can safely ignore this argument. See details and examples.


A formula with shape ymin + ymax ~ x. Faceting can be achieved by including | in the formula.


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)).


Additional arguments. Typically these are (a) ggplot2 aesthetics to be set with attribute = value, (b) ggplot2 aesthetics to be mapped with attribute = ~ expression, or (c) attributes of the layer as a whole, which are set with attribute = value.


Opacity (0 = invisible, 1 = opaque).


Label for x-axis. See also gf_labs().


Label for y-axis. See also gf_labs().

title, subtitle, caption

Title, sub-title, and caption for the plot. See also gf_labs().


The geometric object to use to display the data, either as a ggproto Geom subclass or as a string naming the geom stripped of the geom_ prefix (e.g. "point" rather than "geom_point")


The statistical transformation to use on the data for this layer, either as a ggproto Geom subclass or as a string naming the stat stripped of the stat_ prefix (e.g. "count" rather than "stat_count")


Position adjustment, either as a string naming the adjustment (e.g. "jitter" to use position_jitter), or the result of a call to a position adjustment function. Use the latter if you need to change the settings of the adjustment.


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.

If TRUE, display some minimal help.


A logical indicating whether default attributes are inherited.


An environment in which to look for variables not found in data.

See Also




gf_ribbon(low_temp + high_temp ~ date, data = mosaicData::Weather, fill = ~city, alpha = 0.4) |>
  gf_theme(theme = theme_minimal())
  low_temp + high_temp ~ date | city ~ .,
  color = ~high_temp,
  data = mosaicData::Weather
) |>
  gf_refine(scale_colour_gradientn(colors = rev(rainbow(5))))
gf_ribbon(low_temp + high_temp ~ date | city ~ ., data = mosaicData::Weather)
# Chaining in the data
## Not run: 
mosaicData::Weather |>
  gf_ribbon(low_temp + high_temp ~ date, alpha = 0.4) |>
  gf_facet_grid(city ~ .)

## End(Not run)

ggformula documentation built on Nov. 9, 2023, 5:08 p.m.