aes_string {ggplot2} | R Documentation |
Aesthetic mappings describe how variables in the data are mapped to visual properties (aesthetics) of geoms. Compared to aes this function operates on strings rather than expressions.
aes_string(...)
... |
List of name value pairs |
aes_string
is particularly useful when writing functions that create
plots because you can use strings to define the aesthetic mappings, rather
than having to mess around with expressions.
Hadley Wickham <h.wickham@gmail.com>
aes_string(x = "mpg", y = "wt") aes(x = mpg, y = wt)