stat_conf_ellipse: Plot confidence ellipses.
In YTLogos/ggpubr: 'ggplot2' Based Publication Ready Plots

Description Usage Arguments See Also Examples

Plot confidence ellipses around barycenters. The method for computing confidence ellipses has been modified from FactoMineR::coord.ellipse.

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stat_conf_ellipse(mapping = NULL, data = NULL, geom = "path",
  position = "identity", na.rm = FALSE, show.legend = NA,
  inherit.aes = TRUE, level = 0.95, npoint = 100, bary = TRUE, ...)

`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.
`geom`	The geometric object to use display the data
`position`	Position adjustment, either as a string, or the result of a call to a position adjustment function.
`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.
`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`.
`level`	confidence level used to construct the ellipses. By default, 0.95.
`npoint`	number of points used to draw the ellipses.
`bary`	logical value. If TRUE, the coordinates of the ellipse around the barycentre of individuals are calculated.
`...`	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.

stat_conf_ellipse

# Load data
data("mtcars")
df <- mtcars
df$cyl <- as.factor(df$cyl)

# scatter plot with confidence ellipses
ggscatter(df, x = "wt", y = "mpg", color = "cyl")+
 stat_conf_ellipse(aes(color = cyl))

ggscatter(df, x = "wt", y = "mpg", color = "cyl")+
 stat_conf_ellipse(aes(color = cyl, fill = cyl), alpha = 0.1, geom = "polygon")