labs: Modify axis, legend, and plot labels

# NOT RUN { p <- ggplot(mtcars, aes(mpg, wt, colour = cyl)) + geom_point() p + labs(colour = "Cylinders") p + labs(x = "New x label")  # The plot title appears at the top-left, with the subtitle # display in smaller text underneath it p + labs(title = "New plot title") p + labs(title = "New plot title", subtitle = "A subtitle")  # The caption appears in the bottom-right, and is often used for # sources, notes or copyright p + labs(caption = "(based on data from ...)")  # The plot tag appears at the top-left, and is typically used # for labelling a subplot with a letter. p + labs(title = "title", tag = "A")  # If you want to remove a label, set it to NULL. p + labs(title = "title") + labs(title = NULL) # }