geom_contour {animint2} R Documentation

## Display contours of a 3d surface in 2d.

### Description

Display contours of a 3d surface in 2d.

### Usage

geom_contour(
mapping = NULL,
data = NULL,
stat = "contour",
position = "identity",
...,
lineend = "butt",
linejoin = "round",
linemitre = 1,
na.rm = FALSE,
show.legend = NA,
inherit.aes = TRUE
)

stat_contour(
mapping = NULL,
data = NULL,
geom = "contour",
position = "identity",
...,
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. stat The statistical transformation to use on the data for this layer, as a string. position Position adjustment, either as a string, or the result of a call to a position adjustment function. ... other arguments passed on to layer. These are often aesthetics, used to set an aesthetic to a fixed value, like color = "red" or size = 3. They may also be parameters to the paired geom/stat. lineend Line end style (round, butt, square) linejoin Line join style (round, mitre, bevel) linemitre Line mitre limit (number greater than 1) na.rm If FALSE (the default), removes missing values with a warning. If TRUE silently removes missing values. 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. 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. geom The geometric object to use display the data

### Aesthetics

geom_contourunderstands the following aesthetics (required aesthetics are in bold):

• x

• y

• alpha

• colour

• linetype

• size

• weight

### Computed variables

level

height of contour

geom_density_2d: 2d density contours

### Examples

#' # Basic plot
v <- ggplot(faithfuld, aes(waiting, eruptions, z = density))
v + geom_contour()

# Or compute from raw data
ggplot(faithful, aes(waiting, eruptions)) +
geom_density_2d()

# Setting bins creates evenly spaced contours in the range of the data
v + geom_contour(bins = 2)
v + geom_contour(bins = 10)

# Setting binwidth does the same thing, parameterised by the distance
# between contours
v + geom_contour(binwidth = 0.01)
v + geom_contour(binwidth = 0.001)

# Other parameters
v + geom_contour(aes(colour = ..level..))
v + geom_contour(colour = "red")
v + geom_raster(aes(fill = density)) +
geom_contour(colour = "white")



[Package animint2 version 2022.1.25 Index]