p <- qplot(mpg, wt, data = mtcars)
p + labs(x = "New x label")
p + xlab("New x label")
p + ylab("New y label")
# This should work indepdendently of other functions that modify the
# the scale names
p + ylab("New y label") + ylim(2, 4)
p + ylim(2, 4) + ylab("New y label")
# The labs function also modifies legend labels
p <- qplot(mpg, wt, data = mtcars, colour = cyl)
p + labs(colour = "Cylinders")
# Can also pass in a list, if that is more convenient
p + labs(list(x = "X", y = "Y"))
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