ggfootnote: Add footnotes to a ggplot figure
In Brattle/BrattleExtras: Functions and other objects for Brattle projects

Description Usage Arguments Details Value Author(s) Examples

This function adds a series of strings as separate lines in the footer of a ggplot figure.

1	ggfootnote(plot, ..., use_small_text = TRUE)

`plot`	A ggplot figure
`...`	A series of strings to appear as separate lines in the footer of the figure
`use_small_text`	Logical; should the footnote be set in a smaller font size than the rest of the plot?

This function does not work with the '+' notation used in ggplot. It should be called after the figure is otherwise complete, as the object returned is no longer a ggplot object and is not directly editable. Nonetheless, it works with ggsave as any ggplot figure.

A figure with footnotes

Charlie Gibbons

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p <- qplot(carat, price, data = diamonds, color = cut)
ggfootnote(p, "Source: diamonds data distributed with the ggplot package",
              "Thanks Hadley!")