# NOT RUN {
# geom calls are just a short cut for layer
ggplot(mpg, aes(displ, hwy)) + geom_point()
# shortcut for
ggplot(mpg, aes(displ, hwy)) +
layer(geom = "point", stat = "identity", position = "identity",
params = list(na.rm = FALSE)
)
# use a function as data to plot a subset of global data
ggplot(mpg, aes(displ, hwy)) +
layer(geom = "point", stat = "identity", position = "identity",
data = head, params = list(na.rm = FALSE)
)
# }
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