aes: Generate aesthetic mappings that describe how variables in the data are
mapped to visual properties (aesthetics) of geoms.
Description
aes creates a list of unevaluated expressions.
This function also performs partial name matching,
converts color to colour, and old style R names to ggplot
names (eg. pch to shape, cex to size)
Usage
aes(x, y, ...)
Arguments
x
x value
y
y value
...
List of name value pairs giving aesthetics to
map.