ggerror simplifies ggplot2’s error geoms and introduces asymetric error bars and customization.
Instead of wiring ymin / ymax or xmin / xmax by hand, you supply error (or error_neg + error_pos) and ggerror will do the rest for you. It can be as simple as providing a single error argument, yet offer full customization options for per-side styling.
Installation
install.packages("ggerror") # 0.3.0
pak::pak("iamyannc/ggerror") # 1.0.0 - better error messages & stat_error & sign_aware!
library(ggplot2)
library(ggerror)
p <- ggplot(mtcars, aes(mpg, rownames(mtcars))) +
geom_point()
# Symmetric error bars, using default geom errorbar
p + geom_error(aes(error = drat))
# Asymmetric error bars, using geom_error_pointrange and per-side styling
p + geom_error_pointrange(aes(error_neg = drat / 2, error_pos = drat, linetype_neg = "dashed"))
# One-sided error bars, using the error_geom argument
p + geom_error(error_geom = "linerange", aes(error_neg = NA, error_pos = drat))
Asymmetric error bars
For detailed examples of symmetric, asymmetric, one-sided, and per-side styling, see vignette("ggerror").
Supported geoms
| ggplot2 Base | geom_error(error_geom = ...) |
Specific Wrapper |
|---|---|---|
geom_errorbar |
"errorbar" (default) |
geom_error() |
geom_linerange |
"linerange" |
geom_error_linerange() |
geom_pointrange |
"pointrange" |
geom_error_pointrange() |
geom_crossbar |
"crossbar" |
geom_error_crossbar() |