I am learning R and I was not able to find a comprehensive list of arguments wich I can put into the aes() call. The RStudio help just states aes(x, y, ...) but that "...": How do I know what can be put there?
I found by calling ??aes I can get a good overview of what is possible (see here
https://bookdown.org/yih_huynh/Guide-to-R-Book/basic-aesthetics.html ).
But I also know from a course I can use arguments like "group". Example
library(dplyr)
library(ggplot2)
library(dslabs)
data(heights)
p <- heights %>%
ggplot(aes(height, group = sex))
geom_density()
So the question is: Is there a full list of arguments wich I can use in the aesthetic mappings?
CodePudding user response：
As said by @Limey, it depends on the geom you use. In this post (Is there a table or catalog of aesthetics for ggplot2?), @moodymudskipper gave a really nice answer to see the arguments in the aesthetics. Here a reproducible example:
library(ggplot2)
library(dplyr)
library(purrr)
env <- asNamespace("ggplot2")
all_geoms <- ls(envir = env, pattern = "^Geom. ")
all_geoms <- mget(all_geoms, env)
all_aes <- map(all_geoms, ~.$aesthetics())
all_aes
#> $GeomAbline
#> [1] "slope" "intercept" "colour" "size" "linetype" "alpha"
#> [7] "group"
#>
#> $GeomAnnotationMap
#> [1] "colour" "fill" "size" "linetype" "alpha" "subgroup" "group"
#>
#> $GeomArea
#> [1] "x" "y" "colour" "fill" "size" "linetype" "alpha"
#> [8] "group"
#>
#> $GeomBar
#> [1] "x" "y" "colour" "fill" "size" "linetype" "alpha"
#> [8] "group"
#>
#> $GeomBlank
#> [1] "group"
#>
#> $GeomBoxplot
#> [1] "x" "y" "lower" "xlower" "upper" "xupper"
#> [7] "middle" "xmiddle" "ymin" "xmin" "ymax" "xmax"
#> [13] "weight" "colour" "fill" "size" "alpha" "shape"
#> [19] "linetype" "group"
#>
#> $GeomCol
#> [1] "x" "y" "colour" "fill" "size" "linetype" "alpha"
#> [8] "group"
#>
#> $GeomContour
#> [1] "x" "y" "weight" "colour" "size" "linetype" "alpha"
#> [8] "group"
#>
#> $GeomContourFilled
#> [1] "x" "y" "colour" "fill" "size" "linetype" "alpha"
#> [8] "subgroup" "group"
#>
#> $GeomCrossbar
#> [1] "x" "y" "ymin" "xmin" "ymax" "xmax"
#> [7] "colour" "fill" "size" "linetype" "alpha" "group"
#>
#> $GeomCurve
#> [1] "x" "y" "xend" "yend" "colour" "size" "linetype"
#> [8] "alpha" "group"
#>
#> $GeomCustomAnn
#> [1] "xmin" "xmax" "ymin" "ymax" "group"
#>
#> $GeomDensity
#> [1] "x" "y" "fill" "weight" "colour" "alpha" "size"
#> [8] "linetype" "group"
#>
#> $GeomDensity2d
#> [1] "x" "y" "colour" "size" "linetype" "alpha" "group"
#>
#> $GeomDensity2dFilled
#> [1] "x" "y" "colour" "fill" "size" "linetype" "alpha"
#> [8] "subgroup" "group"
#>
#> $GeomDotplot
#> [1] "x" "y" "colour" "fill" "alpha" "stroke" "linetype"
#> [8] "group"
#>
#> $GeomErrorbar
#> [1] "x" "y" "ymin" "xmin" "ymax" "xmax"
#> [7] "colour" "size" "linetype" "width" "alpha" "group"
#>
#> $GeomErrorbarh
#> [1] "xmin" "xmax" "y" "colour" "size" "linetype" "height"
#> [8] "alpha" "group"
#>
#> $GeomFunction
#> [1] "x" "y" "colour" "size" "linetype" "alpha" "group"
#>
#> $GeomHex
#> [1] "x" "y" "colour" "fill" "size" "linetype" "alpha"
#> [8] "group"
#>
#> $GeomHline
#> [1] "yintercept" "colour" "size" "linetype" "alpha"
#> [6] "group"
#>
#> $GeomLabel
#> [1] "x" "y" "label" "colour" "fill"
#> [6] "size" "angle" "hjust" "vjust" "alpha"
#> [11] "family" "fontface" "lineheight" "group"
#>
#> $GeomLine
#> [1] "x" "y" "colour" "size" "linetype" "alpha" "group"
#>
#> $GeomLinerange
#> [1] "x" "y" "ymin" "xmin" "ymax" "xmax"
#> [7] "colour" "size" "linetype" "alpha" "group"
#>
#> $GeomLogticks
#> [1] "colour" "size" "linetype" "alpha" "group"
#>
#> $GeomMap
#> [1] "map_id" "colour" "fill" "size" "linetype" "alpha" "subgroup"
#> [8] "group"
#>
#> $GeomPath
#> [1] "x" "y" "colour" "size" "linetype" "alpha" "group"
#>
#> $GeomPoint
#> [1] "x" "y" "shape" "colour" "size" "fill" "alpha" "stroke"
#> [9] "group"
#>
#> $GeomPointrange
#> [1] "x" "y" "ymin" "xmin" "ymax" "xmax"
#> [7] "colour" "size" "linetype" "shape" "fill" "alpha"
#> [13] "stroke" "group"
#>
#> $GeomPolygon
#> [1] "x" "y" "colour" "fill" "size" "linetype" "alpha"
#> [8] "subgroup" "group"
#>
#> $GeomQuantile
#> [1] "x" "y" "weight" "colour" "size" "linetype" "alpha"
#> [8] "group"
#>
#> $GeomRaster
#> [1] "x" "y" "fill" "alpha" "group"
#>
#> $GeomRasterAnn
#> [1] "group"
#>
#> $GeomRect
#> [1] "xmin" "xmax" "ymin" "ymax" "colour" "fill"
#> [7] "size" "linetype" "alpha" "group"
#>
#> $GeomRibbon
#> [1] "x" "y" "ymin" "xmin" "ymax" "xmax"
#> [7] "colour" "fill" "size" "linetype" "alpha" "group"
#>
#> $GeomRug
#> [1] "colour" "size" "linetype" "alpha" "x" "y" "group"
#>
#> $GeomSegment
#> [1] "x" "y" "xend" "yend" "colour" "size" "linetype"
#> [8] "alpha" "group"
#>
#> $GeomSf
#> [1] "geometry" "shape" "colour" "fill" "size" "linetype" "alpha"
#> [8] "stroke" "group"
#>
#> $GeomSmooth
#> [1] "x" "y" "colour" "fill" "size" "linetype"
#> [7] "weight" "alpha" "ymin" "ymax" "group"
#>
#> $GeomSpoke
#> [1] "x" "y" "angle" "radius" "colour" "size" "linetype"
#> [8] "alpha" "group"
#>
#> $GeomStep
#> [1] "x" "y" "colour" "size" "linetype" "alpha" "group"
#>
#> $GeomText
#> [1] "x" "y" "label" "colour" "size"
#> [6] "angle" "hjust" "vjust" "alpha" "family"
#> [11] "fontface" "lineheight" "group"
#>
#> $GeomTile
#> [1] "x" "y" "fill" "colour" "size" "linetype"
#> [7] "alpha" "width" "height" "group"
#>
#> $GeomViolin
#> [1] "x" "y" "weight" "colour" "fill" "size" "alpha"
#> [8] "linetype" "group"
#>
#> $GeomVline
#> [1] "xintercept" "colour" "size" "linetype" "alpha"
#> [6] "group"
Created on 2022-07-11 by the reprex package (v2.0.1)
CodePudding user response：
As said by @Limey in the comments, there's no comprehensive list because the possible arguments in aes() depend on which geom_ you call. For example, ?geom_line / ?geom_path give:
geom_path() understands the following aesthetics (required aesthetics are in bold):
- x
- y
- alpha
- colour
- group
- linetype
- size
These functions have a linetype argument in aes() because they draw lines, but it wouldn't make sense to have a linetype arg for geom_bar for instance.