| geom_density2d {ggplot2} | R Documentation |
Contours from a 2d density estimate
geom_density2d(mapping = NULL, data = NULL, stat = "density2d",
position = "identity", lineend = "butt", linejoin = "round",
linemitre = 1, na.rm = FALSE, ...)
mapping |
mapping between variables and aesthetics generated by aes |
data |
dataset used in this layer, if not specified uses plot dataset |
stat |
statistic used by this layer |
position |
position adjustment used by this layer |
lineend |
Line end style (round, butt, square) |
linejoin |
Line join style (round, mitre, bevel) |
linemitre |
Line mitre limit (number greater than 1) |
na.rm |
NULL |
... |
other arguments |
Perform a 2D kernel density estimatation using kde2d and display the results with contours.
This page describes geom\_density2d, see layer and qplot for how to create a complete plot from individual components.
A layer
The following aesthetics can be used with geom\_density2d. Aesthetics are mapped to variables in the data with the aes function: geom\_density2d(aes(x = var))
x: x position (required)
y: y position (required)
weight: observation weight used in statistical transformation
colour: border colour
size: size
linetype: line type
alpha: transparency
This can be useful for dealing with overplotting.
Hadley Wickham, http://had.co.nz/
## Not run: # See stat_density2d for examples ## End(Not run)