geom_text: Textual annotations
In hadley/layers: Layer related components from ggplot2

Textual annotations

1 2	geom_text(aesthetics = list(), parse = FALSE, fontfamily = NULL, fontface = NULL, lineheight = NULL)

`parse`	If `TRUE`, the labels will be parsed into expressions and displayed as described in `plotmath`
`fontfamily`
`fontface`	character string specifying plain, bold, italic etc.
`lineheight`	line height as multiple of text height

df <- data.frame(x = 1:5, y = 1:5, label = letters[1:5])
geom_plot(geom_text(), df)
geom_plot(geom_text(list(angle = 45)), df)
geom_plot(geom_text(fontface = "bold"), df)
geom_plot(geom_text(fontfamily = "Times New Roman"), df)